diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7ed813d..9a40cf2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,7 +48,7 @@ jobs:
           - { name: windows-msvc, os: windows-2022 }
           - { name: macos-arm64,  os: macos-14 }
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
 
       - name: Install Ninja (Linux)
         if: runner.os == 'Linux'
@@ -104,7 +104,7 @@ jobs:
     name: Metal · macos-15
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
 
       - name: Install Ninja
         run: brew install ninja
@@ -142,7 +142,7 @@ jobs:
     name: CUDA build · ubuntu-24.04
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
 
       - name: Install Ninja
         run: sudo apt-get update -qq && sudo apt-get install -y --no-install-recommends ninja-build
@@ -209,7 +209,7 @@ jobs:
     name: Coverage · CPU (via Metal parity suite)
     runs-on: macos-15
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
 
       - name: Install gcovr + Ninja
         run: brew install gcovr ninja
@@ -286,7 +286,7 @@ jobs:
       # critical path of a build, in exchange for a badge.
       - name: Upload HTML report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage-html
           path: coverage-html/
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index fa4823d..852b1ec 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -41,13 +41,13 @@ jobs:
       actions: read
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v7
 
       - name: Install Ninja
         run: sudo apt-get update -qq && sudo apt-get install -y --no-install-recommends ninja-build
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4
         with:
           languages: c-cpp
           build-mode: manual
@@ -67,6 +67,6 @@ jobs:
           cmake --build build --parallel 4
 
       - name: Analyze
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4
         with:
           category: /language:c-cpp