diff --git a/.github/workflows/main-release.yaml b/.github/workflows/main-release.yaml
index 265eafa..6705a99 100644
--- a/.github/workflows/main-release.yaml
+++ b/.github/workflows/main-release.yaml
@@ -33,13 +33,22 @@ jobs:
       - name: Expose GH Runtime
         uses: crazy-max/ghaction-github-runtime@v3
 
+      - name: set lower case owner name
+        run: |
+          echo "OWNER_LC=${OWNER,,}" >>${GITHUB_ENV}
+        env:
+          OWNER: "${{ github.repository_owner }}"
+
+      - name: Convert repository name to lowercase
+        run: echo "REPO_NAME_LC=$(echo ${{ github.event.repository.name }} | awk '{print tolower($0)}')" >> $GITHUB_ENV
+
       - name: Build and Push Docker Images
         run: |
           make build_and_push_images
         env:
           REGISTRY: "ghcr.io"
-          ORG: ${{ github.repository_owner }}
-          REPO: ${{ github.event.repository.name }}
+          ORG: ${{ env.OWNER_LC }}
+          REPO: ${{ env.REPO_NAME_LC }}
           GITHUB_WORKFLOW: ${{ github.workflow }}
 
   build-tauri: