diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 90e44fb0..2297cfb4 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -209,7 +209,7 @@ jobs:
           environment: ${{ env.ENVIRONMENT }}
           ghcr_token: ${{ secrets.GITHUB_TOKEN }}
           github_image_name: ${{ env.GITHUB_IMAGE_REPO }}${{ matrix.service }}
-          image_digest:  ${{ format ( 'needs.build.outputs.{0}_digest', matrix.service) }}
+          image_digest: ${{ needs.build.outputs[format ('{0}_digest', matrix.service)] }}
           openshift_image_name: ${{ env.OPENSHIFT_IMAGE_REPO }}${{ matrix.service }}
           openshift_server_url: ${{ vars.OPENSHIFT_SERVER_URL }}
           namespace: ${{ vars.NAMESPACE }}