diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index de55dea..34a7090 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -34,19 +34,23 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435
 
+      - name: Lowercase repository name
+        id: repo_name
+        run: echo "name=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT
+
       - name: Build and push
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83
         with:
           context: .
           push: true
-          tags: ghcr.io/${{ github.repository }}:${{ github.sha }}
+          tags: ghcr.io/${{ steps.repo_name.outputs.name }}:${{ github.sha }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
       - name: Scan for vulnerabilities
         uses: aquasecurity/trivy-action@b6643a29fecd7f34b3597bc6acb0a98b03d33ff8
         with:
-          image-ref: 'ghcr.io/${{ github.repository }}:${{ github.sha }}'
+          image-ref: 'ghcr.io/${{ steps.repo_name.outputs.name }}:${{ github.sha }}'
           format: 'table'
           exit-code: '1'
           ignore-unfixed: true