diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index e272bf436..601013ed8 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -107,6 +107,8 @@ jobs:
         if: github.event_name == 'push'
         uses: docker/build-push-action@v6
         with:
+          outputs:
+            - digest
           context: ./etherpad
           target: production
           platforms: linux/amd64,linux/arm64