diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6bbc3ed4d50..5e55c2f7900 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Breaking Changes
 
 - The SDK is now compiled for Java 11 instead of Java 8. JVM applications need Java 11 or newer ([#6459](https://github.com/getsentry/sentry-java/pull/6459))
+- Kotlin applications need Kotlin 1.9 or newer. The SDK is built with Kotlin 2.4 for language and API version 2.0 (previously 1.9), and its Kotlin modules depend on `kotlin-stdlib` 2.0.21 (previously 1.9.24) ([#6487](https://github.com/getsentry/sentry-java/pull/6487))
 - Default trace context status to `ok` when an active span has no explicit status ([#6418](https://github.com/getsentry/sentry-java/pull/6418))
 - Remove the deprecated user feedback APIs ([#6337](https://github.com/getsentry/sentry-java/pull/6337))
   - `UserFeedback` and `Sentry.captureUserFeedback(...)`: use `Sentry.feedback().capture(...)` with `io.sentry.protocol.Feedback` instead
diff --git a/build-logic/src/main/kotlin/io/sentry/gradle/JdkTargetConvention.kt b/build-logic/src/main/kotlin/io/sentry/gradle/JdkTargetConvention.kt
index a46a2866df2..d504cceedb2 100644
--- a/build-logic/src/main/kotlin/io/sentry/gradle/JdkTargetConvention.kt
+++ b/build-logic/src/main/kotlin/io/sentry/gradle/JdkTargetConvention.kt
@@ -13,8 +13,10 @@ import org.gradle.api.tasks.compile.JavaCompile
 import org.gradle.jvm.toolchain.JavaLanguageVersion
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import org.jetbrains.kotlin.gradle.dsl.KotlinAndroidProjectExtension
+import org.jetbrains.kotlin.gradle.dsl.KotlinJvmProjectExtension
 import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinAndroidTarget
+import org.jetbrains.kotlin.gradle.targets.jvm.KotlinJvmTarget
 import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile
 
 /** The JDK every module compiles and tests with, whatever JDK runs Gradle. */
@@ -33,6 +35,7 @@ private val PUBLISHED_JAVA_VERSION = JavaVersion.VERSION_11
  *   archives are checked for it
  * - published Android modules main code targets Java 11
  * - minSdk is set for Android libraries
+ * - Kotlin module names stay the project name
  */
 class JdkTargetConvention : Plugin<Project> {
   override fun apply(project: Project) {
@@ -98,6 +101,36 @@ class JdkTargetConvention : Plugin<Project> {
     listOf("com.android.library", "com.android.application").forEach { pluginId ->
       project.plugins.withId(pluginId) { project.targetBuildJdkForUnitTests() }
     }
+
+    project.keepKotlinModuleNameWithoutGroup()
+  }
+
+  /**
+   * KGP 2.4 prefixes the Kotlin module name with the group, e.g. `io.sentry:sentry-okhttp`. R8 copies
+   * that name into the names of the `.kotlin_module` entries it writes under `META-INF`, and app
+   * bundles reject the colon, so the module name stays the project name, as before KGP 2.4.
+   */
+  private fun Project.keepKotlinModuleNameWithoutGroup() {
+    val moduleName = name
+    plugins.withId("org.jetbrains.kotlin.jvm") {
+      extensions.getByType(KotlinJvmProjectExtension::class.java).compilerOptions.moduleName.set(
+        moduleName
+      )
+    }
+    plugins.withId("org.jetbrains.kotlin.android") {
+      extensions.getByType(KotlinAndroidProjectExtension::class.java).compilerOptions.moduleName.set(
+        moduleName
+      )
+    }
+    plugins.withId("org.jetbrains.kotlin.multiplatform") {
+      val targets = extensions.getByType(KotlinMultiplatformExtension::class.java).targets
+      targets.withType(KotlinJvmTarget::class.java).configureEach {
+        compilerOptions.moduleName.set(moduleName)
+      }
+      targets.withType(KotlinAndroidTarget::class.java).configureEach {
+        compilerOptions.moduleName.set(moduleName)
+      }
+    }
   }
 
   private fun Project.minSdk(): Int =
diff --git a/build-logic/src/main/kotlin/io/sentry/gradle/SentryApiValidationPlugin.kt b/build-logic/src/main/kotlin/io/sentry/gradle/SentryApiValidationPlugin.kt
index f4c1dca5948..3e83a8e25c2 100644
--- a/build-logic/src/main/kotlin/io/sentry/gradle/SentryApiValidationPlugin.kt
+++ b/build-logic/src/main/kotlin/io/sentry/gradle/SentryApiValidationPlugin.kt
@@ -1,12 +1,9 @@
 package io.sentry.gradle
 
-import org.gradle.api.GradleException
 import org.gradle.api.Plugin
 import org.gradle.api.Project
-import org.gradle.api.plugins.ExtensionAware
 import org.gradle.kotlin.dsl.create
-import org.jetbrains.kotlin.gradle.dsl.abi.AbiValidationExtension
-import org.jetbrains.kotlin.gradle.dsl.abi.AbiValidationMultiplatformExtension
+import org.jetbrains.kotlin.gradle.dsl.KotlinTopLevelExtension
 import org.jetbrains.kotlin.gradle.dsl.abi.ExperimentalAbiValidation
 
 private val KOTLIN_PLUGIN_IDS =
@@ -34,14 +31,12 @@ class SentryApiValidationPlugin : Plugin<Project> {
   }
 
   private fun enable(project: Project, extension: ApiValidationExtension) {
-    val kotlin = project.extensions.getByName("kotlin") as ExtensionAware
-    when (val abi = kotlin.extensions.getByName("abiValidation")) {
-      is AbiValidationMultiplatformExtension -> abi.also { it.enabled.set(true) }
-      is AbiValidationExtension -> abi.also { it.enabled.set(true) }
-      else -> throw GradleException("Unexpected abiValidation extension: ${abi.javaClass.name}")
-    }.filters {
-      // Lazy, because the module configures the extension after this plugin has been applied.
-      exclude { byNames.addAll(extension.ignoredPackages.map { it.map { pkg -> "$pkg.**" } }) }
+    val kotlin = project.extensions.getByName("kotlin") as KotlinTopLevelExtension
+    kotlin.abiValidation {
+      filters {
+        // Lazy, because the module configures the extension after this plugin has been applied.
+        exclude { byNames.addAll(extension.ignoredPackages.map { it.map { pkg -> "$pkg.**" } }) }
+      }
     }
   }
 }
diff --git a/buildSrc/src/main/java/Config.kt b/buildSrc/src/main/java/Config.kt
index 05786658ef3..00538facdd0 100644
--- a/buildSrc/src/main/java/Config.kt
+++ b/buildSrc/src/main/java/Config.kt
@@ -2,7 +2,7 @@
 object Config {
     val AGP = System.getenv("VERSION_AGP") ?: "9.4.0"
     val kotlinStdLib = "stdlib-jdk8"
-    val kotlinStdLibVersionAndroid = "1.9.24"
+    val kotlinStdLibVersionAndroid = "2.0.21"
     val kotlinTestJunit = "test-junit"
 
     object BuildPlugins {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 49f20a5b213..cf84ce73cd9 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -15,8 +15,8 @@ feign = "11.6"
 gummyBears = "0.12.0"
 jackson = "2.18.3"
 jetbrainsCompose = "1.6.11"
-kotlin = "2.3.21"
-kotlin-compatible-version = "1.9"
+kotlin = "2.4.21"
+kotlin-compatible-version = "2.0"
 ksp = "2.3.9"
 ktorClient = "3.0.0"
 logback = "1.2.9"
diff --git a/sentry-android-distribution/build.gradle.kts b/sentry-android-distribution/build.gradle.kts
index 967d48119fe..1efa5e203be 100644
--- a/sentry-android-distribution/build.gradle.kts
+++ b/sentry-android-distribution/build.gradle.kts
@@ -30,7 +30,7 @@ android {
 
 kotlin {
   compilerOptions.jvmTarget = JVM_11
-  compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
   explicitApi()
 }
 
diff --git a/sentry-android-fragment/api/sentry-android-fragment.api b/sentry-android-fragment/api/sentry-android-fragment.api
index ddd7d0f6699..8cb71e51a91 100644
--- a/sentry-android-fragment/api/sentry-android-fragment.api
+++ b/sentry-android-fragment/api/sentry-android-fragment.api
@@ -34,6 +34,7 @@ public final class io/sentry/android/fragment/FragmentLifecycleState : java/lang
 	public static final field STOPPED Lio/sentry/android/fragment/FragmentLifecycleState;
 	public static final field VIEW_CREATED Lio/sentry/android/fragment/FragmentLifecycleState;
 	public static final field VIEW_DESTROYED Lio/sentry/android/fragment/FragmentLifecycleState;
+	public static fun getEntries ()Lkotlin/enums/EnumEntries;
 	public static fun valueOf (Ljava/lang/String;)Lio/sentry/android/fragment/FragmentLifecycleState;
 	public static fun values ()[Lio/sentry/android/fragment/FragmentLifecycleState;
 }
diff --git a/sentry-android-fragment/build.gradle.kts b/sentry-android-fragment/build.gradle.kts
index 9384b199959..f28e5c76f7a 100644
--- a/sentry-android-fragment/build.gradle.kts
+++ b/sentry-android-fragment/build.gradle.kts
@@ -33,8 +33,8 @@ android {
 
   kotlin {
     compilerOptions.jvmTarget = JvmTarget.JVM_11
-    compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = KotlinVersion.KOTLIN_2_0
   }
 
   testOptions {
diff --git a/sentry-android-integration-tests/test-app-size/proguard-rules.pro b/sentry-android-integration-tests/test-app-size/proguard-rules.pro
index 4db0031ab00..9fe8c83a00c 100644
--- a/sentry-android-integration-tests/test-app-size/proguard-rules.pro
+++ b/sentry-android-integration-tests/test-app-size/proguard-rules.pro
@@ -40,6 +40,7 @@
 -dontwarn timber.log.Timber$Tree
 -dontwarn kotlin.Deprecated
 -dontwarn kotlin.Function
+-dontwarn kotlin.jvm.JvmField
 -dontwarn kotlin.jvm.JvmStatic
 -dontwarn kotlin.jvm.functions.Function2
 -dontwarn kotlin.jvm.functions.Function3
diff --git a/sentry-android-navigation/build.gradle.kts b/sentry-android-navigation/build.gradle.kts
index 4b097f246c4..c0c02481b4f 100644
--- a/sentry-android-navigation/build.gradle.kts
+++ b/sentry-android-navigation/build.gradle.kts
@@ -33,8 +33,8 @@ android {
 
   kotlin {
     compilerOptions.jvmTarget = JVM_11
-    compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = KotlinVersion.KOTLIN_2_0
   }
 
   testOptions {
diff --git a/sentry-android-navigation3/api/sentry-android-navigation3.api b/sentry-android-navigation3/api/sentry-android-navigation3.api
index 45f0482ed82..4b48dee36af 100644
--- a/sentry-android-navigation3/api/sentry-android-navigation3.api
+++ b/sentry-android-navigation3/api/sentry-android-navigation3.api
@@ -27,7 +27,6 @@ public final class io/sentry/compose/navigation3/SentryNavEffectKt {
 
 public final class io/sentry/compose/navigation3/SentryNavOptions {
 	public static final field $stable I
-	public synthetic fun <init> (ZZZILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getCaptureBackStack ()Z
 	public final fun getEnableNavigationBreadcrumbs ()Z
diff --git a/sentry-android-navigation3/build.gradle.kts b/sentry-android-navigation3/build.gradle.kts
index 6f8962a8edf..4159d439f24 100644
--- a/sentry-android-navigation3/build.gradle.kts
+++ b/sentry-android-navigation3/build.gradle.kts
@@ -31,8 +31,8 @@ android {
 
   kotlin {
     compilerOptions.jvmTarget = JVM_11
-    compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = KotlinVersion.KOTLIN_2_0
   }
 
   testOptions {
diff --git a/sentry-android-replay/build.gradle.kts b/sentry-android-replay/build.gradle.kts
index 7794e32c55e..1625470912e 100644
--- a/sentry-android-replay/build.gradle.kts
+++ b/sentry-android-replay/build.gradle.kts
@@ -41,8 +41,8 @@ android {
 
   kotlin {
     compilerOptions.jvmTarget = JvmTarget.JVM_11
-    compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = KotlinVersion.KOTLIN_2_0
   }
 
   testOptions {
diff --git a/sentry-android-sqlite/api/sentry-android-sqlite.api b/sentry-android-sqlite/api/sentry-android-sqlite.api
index 7b9f633b46a..2f9ebbc1ff7 100644
--- a/sentry-android-sqlite/api/sentry-android-sqlite.api
+++ b/sentry-android-sqlite/api/sentry-android-sqlite.api
@@ -8,7 +8,6 @@ public final class io/sentry/android/sqlite/BuildConfig {
 
 public final class io/sentry/android/sqlite/SentrySupportSQLiteOpenHelper : androidx/sqlite/db/SupportSQLiteOpenHelper {
 	public static final field Companion Lio/sentry/android/sqlite/SentrySupportSQLiteOpenHelper$Companion;
-	public synthetic fun <init> (Landroidx/sqlite/db/SupportSQLiteOpenHelper;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun close ()V
 	public static final fun create (Landroidx/sqlite/db/SupportSQLiteOpenHelper;)Landroidx/sqlite/db/SupportSQLiteOpenHelper;
 	public fun getDatabaseName ()Ljava/lang/String;
@@ -23,7 +22,6 @@ public final class io/sentry/android/sqlite/SentrySupportSQLiteOpenHelper$Compan
 
 public final class io/sentry/sqlite/SentrySQLiteDriver : androidx/sqlite/SQLiteDriver {
 	public static final field Companion Lio/sentry/sqlite/SentrySQLiteDriver$Companion;
-	public synthetic fun <init> (Landroidx/sqlite/SQLiteDriver;Lkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public static final fun create (Landroidx/sqlite/SQLiteDriver;)Landroidx/sqlite/SQLiteDriver;
 	public fun hasConnectionPool ()Z
 	public fun open (Ljava/lang/String;)Landroidx/sqlite/SQLiteConnection;
diff --git a/sentry-android-sqlite/build.gradle.kts b/sentry-android-sqlite/build.gradle.kts
index e9812a2f98f..d4ba0c318ae 100644
--- a/sentry-android-sqlite/build.gradle.kts
+++ b/sentry-android-sqlite/build.gradle.kts
@@ -33,8 +33,8 @@ android {
 
   kotlin {
     compilerOptions.jvmTarget = JvmTarget.JVM_11
-    compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = KotlinVersion.KOTLIN_2_0
   }
 
   testOptions {
diff --git a/sentry-android-timber/build.gradle.kts b/sentry-android-timber/build.gradle.kts
index cbcd730c743..30643629096 100644
--- a/sentry-android-timber/build.gradle.kts
+++ b/sentry-android-timber/build.gradle.kts
@@ -40,8 +40,8 @@ android {
 
   kotlin {
     compilerOptions.jvmTarget = JvmTarget.JVM_11
-    compilerOptions.languageVersion = KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = KotlinVersion.KOTLIN_2_0
   }
 
   testOptions {
diff --git a/sentry-apollo-3/build.gradle.kts b/sentry-apollo-3/build.gradle.kts
index 6467521f328..8e9df5ee581 100644
--- a/sentry-apollo-3/build.gradle.kts
+++ b/sentry-apollo-3/build.gradle.kts
@@ -15,8 +15,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-apollo-4/build.gradle.kts b/sentry-apollo-4/build.gradle.kts
index 3bb166ae9a9..d7c8c4f2ede 100644
--- a/sentry-apollo-4/build.gradle.kts
+++ b/sentry-apollo-4/build.gradle.kts
@@ -15,8 +15,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-apollo-5/build.gradle.kts b/sentry-apollo-5/build.gradle.kts
index 4d97069a707..994bf849a1a 100644
--- a/sentry-apollo-5/build.gradle.kts
+++ b/sentry-apollo-5/build.gradle.kts
@@ -14,8 +14,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-apollo/build.gradle.kts b/sentry-apollo/build.gradle.kts
index fbffae9455c..9684879e45c 100644
--- a/sentry-apollo/build.gradle.kts
+++ b/sentry-apollo/build.gradle.kts
@@ -15,8 +15,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-compose/build.gradle.kts b/sentry-compose/build.gradle.kts
index 3bfc82b48be..26777bce166 100644
--- a/sentry-compose/build.gradle.kts
+++ b/sentry-compose/build.gradle.kts
@@ -21,20 +21,20 @@ kotlin {
   androidTarget {
     compilerOptions {
       jvmTarget.set(JvmTarget.JVM_11)
-      apiVersion.set(KotlinVersion.KOTLIN_1_9)
-      languageVersion.set(KotlinVersion.KOTLIN_1_9)
+      apiVersion.set(KotlinVersion.KOTLIN_2_0)
+      languageVersion.set(KotlinVersion.KOTLIN_2_0)
     }
     publishLibraryVariants("release")
   }
   jvm("desktop") {
     compilerOptions {
       jvmTarget.set(JvmTarget.JVM_11)
-      apiVersion.set(KotlinVersion.KOTLIN_1_9)
-      languageVersion.set(KotlinVersion.KOTLIN_1_9)
+      apiVersion.set(KotlinVersion.KOTLIN_2_0)
+      languageVersion.set(KotlinVersion.KOTLIN_2_0)
     }
   }
 
-  coreLibrariesVersion = "1.8"
+  coreLibrariesVersion = "2.0.21"
 
   sourceSets.all {
     // Allow all experimental APIs, since MPP projects are themselves experimental
@@ -47,8 +47,8 @@ kotlin {
   sourceSets {
     getByName("commonMain") {
       compilerOptions {
-        apiVersion.set(KotlinVersion.KOTLIN_1_9)
-        languageVersion.set(KotlinVersion.KOTLIN_1_9)
+        apiVersion.set(KotlinVersion.KOTLIN_2_0)
+        languageVersion.set(KotlinVersion.KOTLIN_2_0)
       }
     }
     getByName("androidMain") {
diff --git a/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/gestures/ComposeGestureTargetLocatorTest.kt b/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/gestures/ComposeGestureTargetLocatorTest.kt
index 8efdf3ebe30..35f68a352fd 100644
--- a/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/gestures/ComposeGestureTargetLocatorTest.kt
+++ b/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/gestures/ComposeGestureTargetLocatorTest.kt
@@ -1,5 +1,8 @@
 @file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
 
+// LayoutNode and Owner locals are typed explicitly: under these suppressions K2 infers their type
+// as an error type, and the test then fails with NoClassDefFoundError: error/NonExistentClass.
+
 package io.sentry.compose.gestures
 
 import androidx.compose.runtime.collection.mutableVectorOf
@@ -59,8 +62,8 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `returns null when no clickable elements`() {
-    val root = mockLayoutNode(isPlaced = true, tag = "root", width = 100, height = 100)
-    val owner = mockOwner(root)
+    val root: LayoutNode = mockLayoutNode(isPlaced = true, tag = "root", width = 100, height = 100)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNull(result)
@@ -68,7 +71,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `detects clickable via SemanticsModifier OnClick`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "btn",
@@ -76,7 +79,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("OnClick"),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -84,7 +87,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(clickableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNotNull(result)
@@ -94,7 +97,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `detects scrollable via SemanticsModifier ScrollBy`() {
-    val scrollableChild =
+    val scrollableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "list",
@@ -102,7 +105,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("ScrollBy"),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -110,7 +113,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(scrollableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.SCROLLABLE)
     assertNotNull(result)
@@ -119,7 +122,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `detects clickable via ClickableElement modifier`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "btn",
@@ -127,7 +130,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         nodeModifierClassName = "androidx.compose.foundation.ClickableElement",
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -135,7 +138,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(clickableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNotNull(result)
@@ -144,7 +147,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `detects clickable via CombinedClickableElement modifier`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "btn",
@@ -152,7 +155,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         nodeModifierClassName = "androidx.compose.foundation.CombinedClickableElement",
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -160,7 +163,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(clickableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNotNull(result)
@@ -169,7 +172,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `detects scrollable via ScrollingLayoutElement modifier`() {
-    val scrollableChild =
+    val scrollableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "scroll",
@@ -177,7 +180,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         nodeModifierClassName = "androidx.compose.foundation.ScrollingLayoutElement",
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -185,7 +188,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(scrollableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.SCROLLABLE)
     assertNotNull(result)
@@ -194,7 +197,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `detects scrollable via ScrollingContainerElement modifier`() {
-    val scrollableChild =
+    val scrollableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "scroll",
@@ -202,7 +205,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         nodeModifierClassName = "androidx.compose.foundation.ScrollingContainerElement",
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -210,7 +213,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(scrollableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.SCROLLABLE)
     assertNotNull(result)
@@ -219,7 +222,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `ignores clickable when looking for scrollable`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "btn",
@@ -227,7 +230,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("OnClick"),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -235,7 +238,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(clickableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.SCROLLABLE)
     assertNull(result)
@@ -243,7 +246,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `ignores scrollable when looking for clickable`() {
-    val scrollableChild =
+    val scrollableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "list",
@@ -251,7 +254,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("ScrollBy"),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -259,7 +262,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(scrollableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNull(result)
@@ -267,7 +270,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `skips unplaced nodes`() {
-    val unplacedClickable =
+    val unplacedClickable: LayoutNode =
       mockLayoutNode(
         isPlaced = false,
         tag = "btn",
@@ -275,7 +278,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("OnClick"),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -283,7 +286,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(unplacedClickable),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNull(result)
@@ -291,7 +294,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `skips nodes outside bounds`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "btn",
@@ -301,7 +304,7 @@ class ComposeGestureTargetLocatorTest {
         left = 200f,
         top = 200f,
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -309,7 +312,7 @@ class ComposeGestureTargetLocatorTest {
         height = 300,
         children = listOf(clickableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     // click at (5, 5) is outside the child bounds (200-250, 200-250)
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
@@ -318,7 +321,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `child inherits parent tag`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -326,7 +329,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("OnClick"),
       )
-    val taggedParent =
+    val taggedParent: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "parent_tag",
@@ -334,7 +337,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(clickableChild),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -342,7 +345,7 @@ class ComposeGestureTargetLocatorTest {
         height = 200,
         children = listOf(taggedParent),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNotNull(result)
@@ -351,7 +354,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `returns deepest clickable for clicks`() {
-    val deepChild =
+    val deepChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "deep_btn",
@@ -359,7 +362,7 @@ class ComposeGestureTargetLocatorTest {
         height = 20,
         semanticsKeys = listOf("OnClick"),
       )
-    val parentClickable =
+    val parentClickable: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "parent_btn",
@@ -368,7 +371,7 @@ class ComposeGestureTargetLocatorTest {
         semanticsKeys = listOf("OnClick"),
         children = listOf(deepChild),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -376,7 +379,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(parentClickable),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNotNull(result)
@@ -385,7 +388,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `returns first scrollable immediately`() {
-    val deepScrollable =
+    val deepScrollable: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "deep_scroll",
@@ -393,7 +396,7 @@ class ComposeGestureTargetLocatorTest {
         height = 20,
         semanticsKeys = listOf("ScrollBy"),
       )
-    val parentScrollable =
+    val parentScrollable: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "parent_scroll",
@@ -402,7 +405,7 @@ class ComposeGestureTargetLocatorTest {
         semanticsKeys = listOf("ScrollBy"),
         children = listOf(deepScrollable),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -410,7 +413,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(parentScrollable),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.SCROLLABLE)
     assertNotNull(result)
@@ -419,7 +422,7 @@ class ComposeGestureTargetLocatorTest {
 
   @Test
   fun `returns null when node has no tag and no parent tag`() {
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -427,7 +430,7 @@ class ComposeGestureTargetLocatorTest {
         height = 50,
         semanticsKeys = listOf("OnClick"),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -435,7 +438,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(clickableChild),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNull(result)
@@ -444,7 +447,7 @@ class ComposeGestureTargetLocatorTest {
   @Test
   fun `finds tagged clickable nested under untagged containers`() {
     // Tree: root(no tag) -> container(no tag) -> container(no tag) -> clickable(tag="deep_btn")
-    val clickableChild =
+    val clickableChild: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = "deep_btn",
@@ -452,7 +455,7 @@ class ComposeGestureTargetLocatorTest {
         height = 10,
         semanticsKeys = listOf("OnClick"),
       )
-    val innerContainer =
+    val innerContainer: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -460,7 +463,7 @@ class ComposeGestureTargetLocatorTest {
         height = 30,
         children = listOf(clickableChild),
       )
-    val outerContainer =
+    val outerContainer: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -468,7 +471,7 @@ class ComposeGestureTargetLocatorTest {
         height = 60,
         children = listOf(innerContainer),
       )
-    val root =
+    val root: LayoutNode =
       mockLayoutNode(
         isPlaced = true,
         tag = null,
@@ -476,7 +479,7 @@ class ComposeGestureTargetLocatorTest {
         height = 100,
         children = listOf(outerContainer),
       )
-    val owner = mockOwner(root)
+    val owner: Owner = mockOwner(root)
 
     val result = locator.locate(owner, 5f, 5f, UiElement.Type.CLICKABLE)
     assertNotNull(result)
diff --git a/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/viewhierarchy/ComposeViewHierarchyExporterTest.kt b/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/viewhierarchy/ComposeViewHierarchyExporterTest.kt
index 7113db59d6c..e2bcaba4d3c 100644
--- a/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/viewhierarchy/ComposeViewHierarchyExporterTest.kt
+++ b/sentry-compose/src/androidUnitTest/kotlin/io/sentry/compose/viewhierarchy/ComposeViewHierarchyExporterTest.kt
@@ -1,5 +1,8 @@
 @file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE") // to access internal vals
 
+// LayoutNode locals are typed explicitly: under these suppressions K2 infers their type as an error
+// type, and the test then fails with NoClassDefFoundError: error/NonExistentClass.
+
 package io.sentry.compose.viewhierarchy
 
 import androidx.compose.runtime.collection.mutableVectorOf
@@ -26,10 +29,10 @@ class ComposeViewHierarchyExporterTest {
   fun testComposeViewHierarchyExport() {
     val rootVhNode = ViewHierarchyNode()
 
-    val childA = mockLayoutNode(true, "childA", 10, 20)
-    val childB = mockLayoutNode(true, null, 10, 20)
-    val childC = mockLayoutNode(false, null, 10, 20)
-    val parent = mockLayoutNode(true, "root", 30, 40, listOf(childA, childB, childC))
+    val childA: LayoutNode = mockLayoutNode(true, "childA", 10, 20)
+    val childB: LayoutNode = mockLayoutNode(true, null, 10, 20)
+    val childC: LayoutNode = mockLayoutNode(false, null, 10, 20)
+    val parent: LayoutNode = mockLayoutNode(true, "root", 30, 40, listOf(childA, childB, childC))
 
     val node = mock<Owner>()
     whenever(node.root).thenReturn(parent)
diff --git a/sentry-graphql-22/build.gradle.kts b/sentry-graphql-22/build.gradle.kts
index 4b01f5769f5..e1b98937135 100644
--- a/sentry-graphql-22/build.gradle.kts
+++ b/sentry-graphql-22/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-graphql-core/build.gradle.kts b/sentry-graphql-core/build.gradle.kts
index 7869fb0cb34..f2245e10fd2 100644
--- a/sentry-graphql-core/build.gradle.kts
+++ b/sentry-graphql-core/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-graphql/build.gradle.kts b/sentry-graphql/build.gradle.kts
index 772bcb03923..83d766e62d6 100644
--- a/sentry-graphql/build.gradle.kts
+++ b/sentry-graphql/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-jcache/build.gradle.kts b/sentry-jcache/build.gradle.kts
index 1e6fc567fdd..368b0373f2e 100644
--- a/sentry-jcache/build.gradle.kts
+++ b/sentry-jcache/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-kotlin-extensions/build.gradle.kts b/sentry-kotlin-extensions/build.gradle.kts
index 79332d18b80..9f7981f4f0a 100644
--- a/sentry-kotlin-extensions/build.gradle.kts
+++ b/sentry-kotlin-extensions/build.gradle.kts
@@ -14,8 +14,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-ktor-client/build.gradle.kts b/sentry-ktor-client/build.gradle.kts
index c0ca7dac26b..0e9167025f1 100644
--- a/sentry-ktor-client/build.gradle.kts
+++ b/sentry-ktor-client/build.gradle.kts
@@ -15,8 +15,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 kotlin { explicitApi() }
diff --git a/sentry-launchdarkly-server/build.gradle.kts b/sentry-launchdarkly-server/build.gradle.kts
index 49dec717830..a9d99856244 100644
--- a/sentry-launchdarkly-server/build.gradle.kts
+++ b/sentry-launchdarkly-server/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-okhttp/build.gradle.kts b/sentry-okhttp/build.gradle.kts
index c9979ad6d37..b2c49cef955 100644
--- a/sentry-okhttp/build.gradle.kts
+++ b/sentry-okhttp/build.gradle.kts
@@ -15,8 +15,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 kotlin { explicitApi() }
diff --git a/sentry-openfeature/build.gradle.kts b/sentry-openfeature/build.gradle.kts
index 8220d7e6a67..74a3da106d8 100644
--- a/sentry-openfeature/build.gradle.kts
+++ b/sentry-openfeature/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-quartz/build.gradle.kts b/sentry-quartz/build.gradle.kts
index 3a3fbaec2e9..af45a6c3754 100644
--- a/sentry-quartz/build.gradle.kts
+++ b/sentry-quartz/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-reactor/build.gradle.kts b/sentry-reactor/build.gradle.kts
index 403f1c4e6f2..077eef74f76 100644
--- a/sentry-reactor/build.gradle.kts
+++ b/sentry-reactor/build.gradle.kts
@@ -16,8 +16,8 @@ tasks.named<JavaCompile>("compileJava") { options.release.set(17) }
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-samples/sentry-samples-spring-7/build.gradle.kts b/sentry-samples/sentry-samples-spring-7/build.gradle.kts
index 83017cba374..b8cafa4d6a6 100644
--- a/sentry-samples/sentry-samples-spring-7/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-7/build.gradle.kts
@@ -54,7 +54,7 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
diff --git a/sentry-samples/sentry-samples-spring-boot-4-log4j2/build.gradle.kts b/sentry-samples/sentry-samples-spring-boot-4-log4j2/build.gradle.kts
index 86ae3560d22..015e92d3d0e 100644
--- a/sentry-samples/sentry-samples-spring-boot-4-log4j2/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-boot-4-log4j2/build.gradle.kts
@@ -18,8 +18,8 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
 
diff --git a/sentry-samples/sentry-samples-spring-boot-4-opentelemetry-noagent/build.gradle.kts b/sentry-samples/sentry-samples-spring-boot-4-opentelemetry-noagent/build.gradle.kts
index b8f4cf762a4..88fa5c41a9c 100644
--- a/sentry-samples/sentry-samples-spring-boot-4-opentelemetry-noagent/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-boot-4-opentelemetry-noagent/build.gradle.kts
@@ -18,8 +18,8 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
 
diff --git a/sentry-samples/sentry-samples-spring-boot-4-opentelemetry/build.gradle.kts b/sentry-samples/sentry-samples-spring-boot-4-opentelemetry/build.gradle.kts
index 8e9d87bbf24..46fe530e898 100644
--- a/sentry-samples/sentry-samples-spring-boot-4-opentelemetry/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-boot-4-opentelemetry/build.gradle.kts
@@ -19,8 +19,8 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
 
diff --git a/sentry-samples/sentry-samples-spring-boot-4-otlp/build.gradle.kts b/sentry-samples/sentry-samples-spring-boot-4-otlp/build.gradle.kts
index bad23b8167a..886d216ac5b 100644
--- a/sentry-samples/sentry-samples-spring-boot-4-otlp/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-boot-4-otlp/build.gradle.kts
@@ -18,8 +18,8 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
 
diff --git a/sentry-samples/sentry-samples-spring-boot-4-webflux/build.gradle.kts b/sentry-samples/sentry-samples-spring-boot-4-webflux/build.gradle.kts
index 6b1f3d91770..b50f73f9866 100644
--- a/sentry-samples/sentry-samples-spring-boot-4-webflux/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-boot-4-webflux/build.gradle.kts
@@ -37,7 +37,7 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
diff --git a/sentry-samples/sentry-samples-spring-boot-4/build.gradle.kts b/sentry-samples/sentry-samples-spring-boot-4/build.gradle.kts
index 7d83c62b2b9..4d7558975a5 100644
--- a/sentry-samples/sentry-samples-spring-boot-4/build.gradle.kts
+++ b/sentry-samples/sentry-samples-spring-boot-4/build.gradle.kts
@@ -18,8 +18,8 @@ tasks.withType<KotlinCompile>().configureEach {
     // skip metadata version check, as Spring 7 / Spring Boot 4 is
     // compiled against a newer version of Kotlin
     compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict", "-Xskip-metadata-version-check")
-    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+    compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+    compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   }
 }
 
diff --git a/sentry-servlet-jakarta/build.gradle.kts b/sentry-servlet-jakarta/build.gradle.kts
index 1c445b61360..a2e3d80a973 100644
--- a/sentry-servlet-jakarta/build.gradle.kts
+++ b/sentry-servlet-jakarta/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-servlet/build.gradle.kts b/sentry-servlet/build.gradle.kts
index a323c040ce8..9f978c461bf 100644
--- a/sentry-servlet/build.gradle.kts
+++ b/sentry-servlet/build.gradle.kts
@@ -13,8 +13,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-spring-boot-4-starter/build.gradle.kts b/sentry-spring-boot-4-starter/build.gradle.kts
index fca672dac9d..8053c1d239f 100644
--- a/sentry-spring-boot-4-starter/build.gradle.kts
+++ b/sentry-spring-boot-4-starter/build.gradle.kts
@@ -17,8 +17,8 @@ tasks.named<JavaCompile>("compileJava") { options.release.set(17) }
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-spring-boot-4/build.gradle.kts b/sentry-spring-boot-4/build.gradle.kts
index 26524b4f81e..f05d9aa4c89 100644
--- a/sentry-spring-boot-4/build.gradle.kts
+++ b/sentry-spring-boot-4/build.gradle.kts
@@ -22,7 +22,7 @@ tasks.named<JavaCompile>("compileJava") { options.release.set(17) }
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions {
     jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17)
-    languageVersion.set(org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9)
+    languageVersion.set(org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0)
     freeCompilerArgs.add("-Xjsr305=strict")
   }
 }
diff --git a/sentry-spring-boot-jakarta/build.gradle.kts b/sentry-spring-boot-jakarta/build.gradle.kts
index 4fd584e8bb5..2126607d098 100644
--- a/sentry-spring-boot-jakarta/build.gradle.kts
+++ b/sentry-spring-boot-jakarta/build.gradle.kts
@@ -20,8 +20,8 @@ tasks.named<JavaCompile>("compileJava") { options.release.set(17) }
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-spring-boot-starter-jakarta/build.gradle.kts b/sentry-spring-boot-starter-jakarta/build.gradle.kts
index 92cc97b240c..42792dee59f 100644
--- a/sentry-spring-boot-starter-jakarta/build.gradle.kts
+++ b/sentry-spring-boot-starter-jakarta/build.gradle.kts
@@ -17,8 +17,8 @@ tasks.named<JavaCompile>("compileJava") { options.release.set(17) }
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-spring-boot-starter/build.gradle.kts b/sentry-spring-boot-starter/build.gradle.kts
index c78113f363d..cd50b73310a 100644
--- a/sentry-spring-boot-starter/build.gradle.kts
+++ b/sentry-spring-boot-starter/build.gradle.kts
@@ -12,8 +12,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-spring-boot/build.gradle.kts b/sentry-spring-boot/build.gradle.kts
index 02a7b508225..8eafba4bd97 100644
--- a/sentry-spring-boot/build.gradle.kts
+++ b/sentry-spring-boot/build.gradle.kts
@@ -16,8 +16,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 // Spring scans the integration test apps' own bytecode with its repackaged ASM at startup, and
diff --git a/sentry-spring-jakarta/build.gradle.kts b/sentry-spring-jakarta/build.gradle.kts
index ee9b057ec6e..6f76c7e6267 100644
--- a/sentry-spring-jakarta/build.gradle.kts
+++ b/sentry-spring-jakarta/build.gradle.kts
@@ -18,8 +18,8 @@ plugins {
 tasks.named<JavaCompile>("compileJava") { options.release.set(17) }
 
 kotlin {
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
   compilerOptions.freeCompilerArgs = listOf("-Xjsr305=strict")
 }
 
diff --git a/sentry-spring/build.gradle.kts b/sentry-spring/build.gradle.kts
index 52ed26cce17..fc36bd555fa 100644
--- a/sentry-spring/build.gradle.kts
+++ b/sentry-spring/build.gradle.kts
@@ -15,8 +15,8 @@ plugins {
 
 tasks.named<KotlinCompile>("compileKotlin") {
   compilerOptions.jvmTarget = JvmTarget.JVM_11
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {
diff --git a/sentry-test-support/build.gradle.kts b/sentry-test-support/build.gradle.kts
index 2539beccb5f..32562c3fdb9 100644
--- a/sentry-test-support/build.gradle.kts
+++ b/sentry-test-support/build.gradle.kts
@@ -7,8 +7,8 @@ plugins {
 }
 
 tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
-  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
-  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_1_9
+  compilerOptions.languageVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
+  compilerOptions.apiVersion = org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0
 }
 
 dependencies {