diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index 6b0e26e4f..78994f65f 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
+    - uses: actions/checkout@163217dfcd28294438ea1c1c149cfaf66eec283e
     - name: Set up JDK 8
       uses: actions/setup-java@83a06ff9d9aa70f76a8d73278e646c20b2bf1ae5
       with:
diff --git a/.github/workflows/pullrequest.yml b/.github/workflows/pullrequest.yml
index f6adf1e8d..a29c94029 100644
--- a/.github/workflows/pullrequest.yml
+++ b/.github/workflows/pullrequest.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the code
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
+        uses: actions/checkout@163217dfcd28294438ea1c1c149cfaf66eec283e
 
       - name: Set up JDK 8
         uses: actions/setup-java@83a06ff9d9aa70f76a8d73278e646c20b2bf1ae5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6c2793919..4dac9644f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -28,7 +28,7 @@ jobs:
       # These steps are only run if this was a merged release-please PR
       - name: checkout
         if: ${{ steps.release.outputs.release_created }}
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
+        uses: actions/checkout@163217dfcd28294438ea1c1c149cfaf66eec283e
       - name: Set up JDK 8
         if: ${{ steps.release.outputs.release_created }}
         uses: actions/setup-java@83a06ff9d9aa70f76a8d73278e646c20b2bf1ae5
diff --git a/.github/workflows/static-code-scanning.yaml b/.github/workflows/static-code-scanning.yaml
index edeff9901..a40efff07 100644
--- a/.github/workflows/static-code-scanning.yaml
+++ b/.github/workflows/static-code-scanning.yaml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871
+        uses: actions/checkout@163217dfcd28294438ea1c1c149cfaf66eec283e
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL