diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 9193696..a20c617 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Build & Deploy Worker
         uses: cloudflare/wrangler-action@v3.15.0
         with: