diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 2ce9c25..40d5f99 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Set up Buildx
         uses: docker/setup-buildx-action@v3
@@ -78,7 +78,7 @@ jobs:
     needs: build
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - uses: peter-evans/dockerhub-description@v4
         with: