diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index 64f65c0..ac7b135 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -57,7 +57,10 @@ jobs:
 
           # 设置镜像标签
           REGISTRY_HOST=$(echo "${{ gitea.server_url }}" | sed 's|https\?://||')
-          IMAGE_NAME="$REGISTRY_HOST/${{  lower(gitea.repository_owner)  }}/hello-world-app"
+
+          LOWER_OWNER=$(echo "{{gitea.repository_owner}}" | tr '[:upper:]' '[:lower:]')
+
+          IMAGE_NAME="$REGISTRY_HOST/${{ LOWER_OWNER  }}/hello-world-app"
           IMAGE_TAG="latest"
           COMMIT_SHA="${{ gitea.sha }}"