diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e129a11..d738944 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
 
     - name: Set up Node.js
       uses: actions/setup-node@v6
diff --git a/.github/workflows/official-build.yml b/.github/workflows/official-build.yml
index 016e6bd..99ce274 100644
--- a/.github/workflows/official-build.yml
+++ b/.github/workflows/official-build.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v6.0.2
 
     - name: Extract branch name
       shell: bash
diff --git a/.github/workflows/on-push-verification.yml b/.github/workflows/on-push-verification.yml
index 86138cb..4bd35a8 100644
--- a/.github/workflows/on-push-verification.yml
+++ b/.github/workflows/on-push-verification.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
 
       # Checkout your code repository to scan
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
 
       # Run analyzers
     - uses: ./
diff --git a/.github/workflows/sample-workflow.yml b/.github/workflows/sample-workflow.yml
index 7f2411a..77c6cf4 100644
--- a/.github/workflows/sample-workflow.yml
+++ b/.github/workflows/sample-workflow.yml
@@ -20,7 +20,7 @@ jobs:
     steps:
       
       # Checkout your code repository to scan
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
 
       # Run analyzers
     - name: Run Microsoft Security DevOps Analysis
diff --git a/.github/workflows/self-hosted-validation-v1.yml b/.github/workflows/self-hosted-validation-v1.yml
index 67d1254..3471076 100644
--- a/.github/workflows/self-hosted-validation-v1.yml
+++ b/.github/workflows/self-hosted-validation-v1.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
 
       # Checkout your code repository to scan
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
 
     # Run MSDO v1
     - name: Run MSDO
diff --git a/.github/workflows/self-hosted-validation-v2.yml b/.github/workflows/self-hosted-validation-v2.yml
index de57d5e..12476bd 100644
--- a/.github/workflows/self-hosted-validation-v2.yml
+++ b/.github/workflows/self-hosted-validation-v2.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v6.0.2
 
     - name: Run Defender CLI - Image Scan
       uses: ./v2/
diff --git a/.github/workflows/toolchain-version-probe.yml b/.github/workflows/toolchain-version-probe.yml
index a87751b..ecc8c56 100644
--- a/.github/workflows/toolchain-version-probe.yml
+++ b/.github/workflows/toolchain-version-probe.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       # Run MSDO — scan may find nothing (no real targets), that's fine.
       # Side effect: Guardian downloads all tool packages into _msdo/packages/nuget/.