diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 30ce8cb..ba413ae 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -27,7 +27,7 @@ jobs:
     permissions:
       contents: write  # Need write permission to update CHANGELOG.md
     steps:
-      - uses: actions/checkout@8edcb1bdb4e267140fa742c62e395cd74f332709
+      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
       - name: Generate changelog
         uses: rhysd/changelog-from-release/action@52d937b0fb327a34339178db5413662c35213abf
         with:
@@ -44,7 +44,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-    - uses: actions/checkout@8edcb1bdb4e267140fa742c62e395cd74f332709
+    - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
     - name: Set up Python
       uses: actions/setup-python@fbeb884f69f0ac1c0257302f62aa524c2824b649
       with:
diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 6f8216b..508ddcd 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -27,7 +27,7 @@ jobs:
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
     # 1. Checkout your stub repository code
-    - uses: actions/checkout@8edcb1bdb4e267140fa742c62e395cd74f332709
+    - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
       
     # 2. Set up the specific Python version
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/.github/workflows/sign-release.yml b/.github/workflows/sign-release.yml
index 9054aa8..10ea29a 100644
--- a/.github/workflows/sign-release.yml
+++ b/.github/workflows/sign-release.yml
@@ -24,7 +24,7 @@ jobs:
       id-token: write  # Needed for Sigstore authentication
     
     steps:
-      - uses: actions/checkout@8edcb1bdb4e267140fa742c62e395cd74f332709
+      - uses: actions/checkout@ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493
         with:
           persist-credentials: false