diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yml
index 116e1e6..39a21e0 100644
--- a/.github/workflows/validation.yml
+++ b/.github/workflows/validation.yml
@@ -15,7 +15,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
     - name: Set up Python
       uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
       with: