diff --git a/.github/workflows/pr-00-gate.yml b/.github/workflows/pr-00-gate.yml
index c556547cc..91e6c21ef 100644
--- a/.github/workflows/pr-00-gate.yml
+++ b/.github/workflows/pr-00-gate.yml
@@ -49,7 +49,9 @@ jobs:
       classification_rationale: ${{ steps.classify.outputs.classification-rationale || 'path classifier unavailable' }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        with:
+          persist-credentials: false
 
       - name: Classify changed paths
         id: classify
@@ -90,8 +92,9 @@ jobs:
       description: ${{ steps.summarize.outputs.description }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
+          persist-credentials: false
           sparse-checkout: |
             .github/scripts
           sparse-checkout-cone-mode: false