diff --git a/Dockerfile b/Dockerfile
index e83a13b..bfdb6db 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,9 @@ ENV NODE_ENV=production \
     PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1
 
-RUN apk add --no-cache python3 py3-pip
+# Alpine 使用国内镜像，加速 apk 安装（python3/py3-pip）
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories \
+    && apk add --no-cache python3 py3-pip
 
 COPY --from=build /app/node_modules ./node_modules
 COPY --from=build /app/dist ./dist