diff --git a/.github/workflows/heroku-container.yml b/.github/workflows/heroku-container.yml
index 5ebcb94..43eb268 100644
--- a/.github/workflows/heroku-container.yml
+++ b/.github/workflows/heroku-container.yml
@@ -110,11 +110,10 @@ jobs:
           for target in $TARGETS; do
             docker buildx build \
               --target "$target" \
-              --tag "registry.heroku.com/$APP/$target" \
+              --output "type=image,name=registry.heroku.com/$APP/$target,push=true,oci-mediatypes=false" \
               --cache-from type=gha \
               --cache-to type=gha,mode=max \
               --provenance=false \
-              --push \
               "${args[@]}" \
               "${secrets[@]}" \
               .