diff --git a/.github/workflows/CubeMX-CI.yml b/.github/workflows/CubeMX-CI.yml
index 9ee3236..d4ac3ff 100644
--- a/.github/workflows/CubeMX-CI.yml
+++ b/.github/workflows/CubeMX-CI.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
 
       - name: Install tools
         uses: ARM-software/cmsis-actions/vcpkg@v1
diff --git a/.github/workflows/DualCore-CI.yml b/.github/workflows/DualCore-CI.yml
index f8d8e44..967b6fb 100644
--- a/.github/workflows/DualCore-CI.yml
+++ b/.github/workflows/DualCore-CI.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
 
       - name: Install tools
         uses: ARM-software/cmsis-actions/vcpkg@v1
diff --git a/.github/workflows/Hello-CI.yml b/.github/workflows/Hello-CI.yml
index 08b42b9..7cfe431 100644
--- a/.github/workflows/Hello-CI.yml
+++ b/.github/workflows/Hello-CI.yml
@@ -36,7 +36,7 @@ jobs:
           egress-policy: audit
 
       - name: Checkout repo
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Install tools
         uses: ARM-software/cmsis-actions/vcpkg@75fd924d583d17eacdbfaf77f21ca09e335c3c79 # v1
diff --git a/.github/workflows/SimpleTZ-CI.yml b/.github/workflows/SimpleTZ-CI.yml
index 53b02f5..b8d1e55 100644
--- a/.github/workflows/SimpleTZ-CI.yml
+++ b/.github/workflows/SimpleTZ-CI.yml
@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
 
       - name: Install tools
         uses: ARM-software/cmsis-actions/vcpkg@v1