diff --git a/.github/workflows/ci-workflow.yml b/.github/workflows/ci-workflow.yml
index 7bd6f0da..1279566e 100644
--- a/.github/workflows/ci-workflow.yml
+++ b/.github/workflows/ci-workflow.yml
@@ -14,7 +14,7 @@ jobs:
   housekeeping:
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
 
     - name: Set up Python
       uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065
@@ -55,7 +55,7 @@ jobs:
       matrix:
         python-version: [3.7, 3.8, 3.9, 3.10.6, 3.11.2]
     steps:
-    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
 
     - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065
       with:
diff --git a/.github/workflows/issue-commenter.yml b/.github/workflows/issue-commenter.yml
index 0ec90aee..5472e7d9 100644
--- a/.github/workflows/issue-commenter.yml
+++ b/.github/workflows/issue-commenter.yml
@@ -9,7 +9,7 @@ jobs:
     name: Comments for every NEW issue.
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
 
       - name: Read issue-comment.md
         id: issue-comment
diff --git a/.github/workflows/test-runner.yml b/.github/workflows/test-runner.yml
index 88c348a3..428be225 100644
--- a/.github/workflows/test-runner.yml
+++ b/.github/workflows/test-runner.yml
@@ -10,6 +10,6 @@ jobs:
   test-runner:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
       - name: Run test-runner
         run: docker compose run test-runner