diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 490f050..86b81e9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
       - name: Hub Login
         uses: docker/login-action@v2
         with: