diff --git a/.github/workflows/build-push-ghcr.yml b/.github/workflows/build-push-ghcr.yml
index fac3d77..22f8f06 100644
--- a/.github/workflows/build-push-ghcr.yml
+++ b/.github/workflows/build-push-ghcr.yml
@@ -20,7 +20,13 @@ jobs:
           username: ${{github.actor}}
           password: ${{secrets.GITHUB_TOKEN}}
 
+      - name: set lower case repo_name
+        run: |
+          echo "REPO_NAME_LC=${REPO_NAME,,}" >>${GITHUB_ENV}
+        env:
+          REPO_NAME: '${{ github.event.repository.name }}'
+
       - name: 'Build Inventory Image'
         run: |
-          docker build . -f Dockerfile.base --tag ghcr.io/abnerrizzi/${{ github.event.repository.name }}:latest
-          docker push ghcr.io/abnerrizzi/${{ github.event.repository.name }}:latest
+          docker build . -f Dockerfile.base --tag ghcr.io/abnerrizzi/${{ REPO_NAME }}:latest
+          docker push ghcr.io/abnerrizzi/${{ REPO_NAME }}:latest