diff --git a/.github/workflows/backend.yml b/.github/workflows/backend.yml
index 882a488f..26867102 100644
--- a/.github/workflows/backend.yml
+++ b/.github/workflows/backend.yml
@@ -9,11 +9,10 @@ on:
     tags: [ 'verein-*.*.*' ]
 
 env:
-  BASE_IMAGE_NAME: ghcr.io/vereinsfin/vereinsfin # org_name/repo_name
-  DOCKER_TAG_PREFIX: vereinsfin/vereinsfin # project_name/maven_artifact_id
-  
+  BASE_IMAGE_NAME: ghcr.io/hopps-app/hopps/vereine # org_name/repo_name/artifact_id
+
   # prefix which needs to be in front of version tags
-  VERSION_TAG_PREFIX: verein-
+  VERSION_TAG_PREFIX: 'verein-'
 
 jobs:
   build-code-and-container:
@@ -37,11 +36,11 @@ jobs:
           images: ${{ env.BASE_IMAGE_NAME }}
           tags: |
             # increasing run number tag on main
-            type=raw,prefix=${{env.DOCKER_TAG_PREFIX}},value=${{ github.run_number }},enable={{is_default_branch}}
+            type=raw,value=${{ github.run_number }},enable={{is_default_branch}}
             # for version tags (only works for tags)
-            type=match,prefix=${{env.DOCKER_TAG_PREFIX}},pattern=${{ env.VERSION_TAG_PREFIX }}\d.\d.\d
+            type=match,pattern=${{ env.VERSION_TAG_PREFIX }}\d.\d.\d
             # for containers on feature branches
-            type=ref,prefix=${{env.DOCKER_TAG_PREFIX}},event=branch,enable=${{ github.ref_name != github.event.repository.default_branch }}
+            type=ref,event=branch,enable=${{ github.ref_name != github.event.repository.default_branch }}
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3