diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index 22b6a988..8f49cd32 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@43045ae669be728bd34ed56fcd1a230c0dc4d8e2
+    - uses: actions/checkout@8459bc0c7e3759cdf591f513d9f141a95fef0a8f
     - name: Set up JDK 8
       uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9
       with:
diff --git a/.github/workflows/pullrequest.yml b/.github/workflows/pullrequest.yml
index c66ad982..368c6c85 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@43045ae669be728bd34ed56fcd1a230c0dc4d8e2
+        uses: actions/checkout@8459bc0c7e3759cdf591f513d9f141a95fef0a8f
 
       - name: Set up JDK 8
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f31c8d06..5faf158b 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@43045ae669be728bd34ed56fcd1a230c0dc4d8e2
+        uses: actions/checkout@8459bc0c7e3759cdf591f513d9f141a95fef0a8f
       - name: Set up JDK 8
         if: ${{ steps.release.outputs.release_created }}
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9
diff --git a/.github/workflows/static-code-scanning.yaml b/.github/workflows/static-code-scanning.yaml
index 382f66fc..2399af5b 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@43045ae669be728bd34ed56fcd1a230c0dc4d8e2
+        uses: actions/checkout@8459bc0c7e3759cdf591f513d9f141a95fef0a8f
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL