diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index cb2e887..e81772f 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -37,6 +37,6 @@ jobs:
           file: ./Dockerfile.build
           builder: default
           push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ secrets.CUSTOM_DOCKERHUB_USERNAME }}/openapi-ui:${{ replace(github.head_ref || github.ref_name, '/', '-') }}-${{ steps.short-sha.outputs.sha }}
+          tags: ${{ secrets.CUSTOM_DOCKERHUB_USERNAME }}/openapi-ui:${{ (github.head_ref || github.ref_name)  | gsub('/','-') }}-${{ steps.short-sha.outputs.sha }}
           build-args: |
             NODE_VERSION=${{ env.NODE_VERSION }}