diff --git a/tools/secure_boot_hil/pyproject.toml b/tools/secure_boot_hil/pyproject.toml
index 587115d..e5132e5 100644
--- a/tools/secure_boot_hil/pyproject.toml
+++ b/tools/secure_boot_hil/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-  "mypy==2.3.0",
+  "mypy==2.3.1",
   "pytest==7.4.4",
   "ruff==0.16.1",
 ]