diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6f013e9a..f45ce48b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -43,7 +43,7 @@ jobs:
           esac;
 
       - name: build & push image
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v2.4.0
         with:
           context: .
           file: docker/alpine/Dockerfile