diff --git a/.github/workflows/docker_build_push.yml b/.github/workflows/docker_build_push.yml
index c33009e..944c88f 100644
--- a/.github/workflows/docker_build_push.yml
+++ b/.github/workflows/docker_build_push.yml
@@ -83,9 +83,9 @@ jobs:
             type=sha   
       - name: Pull and push Singularity container
         run: |
-          for tag in ${steps.meta.outputs.tags[@]}
+          for tag in ${{ steps.meta.outputs.tags }}
           do
-            echo $tag
+            echo "tag: $tag"
             singularity pull nothingtoseehere.sif docker://ghcr.io/${{ github.repository_owner }}/nothingtoseehere:$tag
             echo ${{ secrets.GITHUB_TOKEN }} | oras login --username ${{ github.repository_owner }} --password-stdin ghcr.io
             oras push ghcr.io/${{ github.repository_owner }}/nothingtoseehere:$tag --artifact-type application/vnd.acme.rocket.config nothingtoseehere.sif