diff --git a/.github/workflows/merge.yml b/.github/workflows/merge.yml
index d301ccc5..e9f86d28 100644
--- a/.github/workflows/merge.yml
+++ b/.github/workflows/merge.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+    - uses: actions/checkout@27135e314dd1818f797af1db9dae03a9f045786b
     - name: Set up JDK 8
       uses: actions/setup-java@ea15b3b99cdc9ac45af1882d085e3f9297a75a8b
       with:
diff --git a/.github/workflows/pullrequest.yml b/.github/workflows/pullrequest.yml
index 349508c7..fa2af670 100644
--- a/.github/workflows/pullrequest.yml
+++ b/.github/workflows/pullrequest.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Check out the code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@27135e314dd1818f797af1db9dae03a9f045786b
 
       - name: Set up JDK 8
         uses: actions/setup-java@ea15b3b99cdc9ac45af1882d085e3f9297a75a8b
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9bac8659..ab4f9041 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -29,7 +29,7 @@ jobs:
       # These steps are only run if this was a merged release-please PR
       - name: checkout
         if: ${{ steps.release.outputs.releases_created }}
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@27135e314dd1818f797af1db9dae03a9f045786b
       - name: Set up JDK 8
         if: ${{ steps.release.outputs.releases_created }}
         uses: actions/setup-java@ea15b3b99cdc9ac45af1882d085e3f9297a75a8b
diff --git a/.github/workflows/static-code-scanning.yaml b/.github/workflows/static-code-scanning.yaml
index 0d9c8128..ea68aca3 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@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@27135e314dd1818f797af1db9dae03a9f045786b
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL