diff --git a/.github/workflows/push-docker.yml b/.github/workflows/push-docker.yml
index bc7cd843..400985a4 100644
--- a/.github/workflows/push-docker.yml
+++ b/.github/workflows/push-docker.yml
@@ -86,10 +86,11 @@ jobs:
         cache-to: type=gha,mode=max
         tags: |
           ${{ secrets.DOCKER_HUB_USERNAME }}/s-pdf:ultra-light-latest
-          ghcr.io/${{ github.repository_owner }}/s-pdf:ultra-light-latest
+          ghcr.io/${{ github.repository_owner.toLowerCase() }}/s-pdf:ultra-light-latest
         labels: |
           ${{ steps.meta.outputs.labels }}
           type=raw,value=ultra-light-latest,enable=${{ github.ref == 'refs/heads/master' }}
           type=raw,value=ultra-light-alpha,enable=${{ github.ref == 'refs/heads/main' }}
         platforms: linux/amd64,linux/arm64/v8
 
+