diff --git a/.github/workflows/docs_validate.yml b/.github/workflows/docs_validate.yml
index b679b19..0bb1fa5 100644
--- a/.github/workflows/docs_validate.yml
+++ b/.github/workflows/docs_validate.yml
@@ -13,7 +13,7 @@ jobs:
     name: 📚 Doc validation
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       with:
         fetch-depth: 0 # avoid shallow clone so nbgv can do its work.
     - name: 🔗 Markup Link Checker (mlc)