diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 1d1f0bb..4440983 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -50,6 +50,7 @@ jobs:
             ${{ steps.meta.outputs.tags }}
       - name: Sign Push
         run: |
-          cosign sign --key env://COSIGN_KEY --tlog-upload=false ${{ steps.build-push.outputs.tags }}
+          cosign sign --key env://COSIGN_KEY --tlog-upload=false ghcr.io/caas-team/entsoe:${{ steps.build-push.outputs.digest }}
+          cosign sign --key env://COSIGN_KEY --tlog-upload=false mtr.devops.telekom.de/caas/entsoe:${{ steps.build-push.outputs.digest }}
         env:
           COSIGN_KEY: ${{secrets.COSIGN_KEY}}