diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index 9c630b0..dd26286 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -19,7 +19,7 @@
       pages: write
       id-token: write
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
       with:
         fetch-depth: 0
     - id: deployment