diff --git a/.github/workflows/tag-release.yaml b/.github/workflows/tag-release.yaml
index 64f16a7..816722e 100644
--- a/.github/workflows/tag-release.yaml
+++ b/.github/workflows/tag-release.yaml
@@ -28,8 +28,8 @@ jobs:
       uses: actions/checkout@v2
     - name: Tag latest release in Github Container Registry
       env: 
-        UNSTABLE_IMAGE_ID: ${{ secrets.IMAGE_NAME }}-unstable
-        PROD_IMAGE_ID: ${{ secrets.IMAGE_NAME }}
+        UNSTABLE_IMAGE_ID: ghcr.io/mlibrary/${{ secrets.IMAGE_NAME }}-unstable
+        PROD_IMAGE_ID: ghcr.io/mlibrary/${{ secrets.IMAGE_NAME }}
       run: |
         docker pull $UNSTABLE_IMAGE_ID:${{ github.sha }}
         docker tag $UNSTABLE_IMAGE_ID:${{ github.sha }} $PROD_IMAGE_ID:$TAG