diff --git a/.gitea/workflows/worker-base-image.yml b/.gitea/workflows/worker-base-image.yml
index 510d0fc69..c07286aa8 100644
--- a/.gitea/workflows/worker-base-image.yml
+++ b/.gitea/workflows/worker-base-image.yml
@@ -76,7 +76,8 @@ jobs:
         set -eu
         REGISTRY="xiaoxia-registry.cn-hangzhou.cr.aliyuncs.com/xiaoxiakeji"
         IMAGE_TAG="${REGISTRY}/${{ matrix.image_name }}:latest"
-        CACHE_REF="${REGISTRY}/${{ matrix.cache_name }}:${GITHUB_REF_NAME}"
+        SAFE_REF_NAME=$(echo "${GITHUB_REF_NAME}" | tr '/' '-')
+        CACHE_REF="${REGISTRY}/${{ matrix.cache_name }}:${SAFE_REF_NAME}"
         
         echo "=== Building ${{ matrix.name }} base image ==="
         echo "Image: ${IMAGE_TAG}"