diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index d1f4e9e..f9acfd7 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -57,4 +57,15 @@ jobs:
         | tar -C "${PWD}/bin" -xz pack
     - name: Build Image with pack
       run: |
-        bin/pack --version
+        bin/pack build ghcr.io/hvg/blog:$TAG \
+        --builder heroku/buildpacks:20 \
+        --descriptor project.toml \
+        --workspace /app \
+        --env COMPOSER_AUTH=$COMPOSER_AUTH;
+    - name: Tag Docker image to ref
+      run: |
+        docker tag ghcr.io/hvg/blog:$TAG ghcr.io/hvg/blog:$REF
+    - name: Docker push
+      run: |
+        docker push ghcr.io/hvg/blog:$TAG
+        docker push ghcr.io/hvg/blog:$REF