diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ea351e5133dd9bb93f124c8173e4b17f36d065af..7be1054c5496d6e01b699d12a79546fb50df8bba 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
     outputs:
       docs_only: ${{ steps.check_changes.outputs.docs_only }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
         with:
           fetch-depth: 0
       - name: Check for non-docs changes