diff --git a/.github/workflows/validate-chezmoi-urls.yml b/.github/workflows/validate-chezmoi-urls.yml
index 109b778..1ffce53 100644
--- a/.github/workflows/validate-chezmoi-urls.yml
+++ b/.github/workflows/validate-chezmoi-urls.yml
@@ -9,7 +9,7 @@ jobs:
   validate-urls:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Validate URLs
         run: |