diff --git a/Dockerfile b/Dockerfile
index 4558b47..6a30a10 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,7 @@ FROM python:3.14-slim-bookworm
 RUN pip install --no-cache-dir "uv>=0.9,<0.10"
 ENV UV_COMPILE_BYTECODE=1 \
     UV_LINK_MODE=copy \
-    UV_DEFAULT_INDEX=https://pypi.tuna.tsinghua.edu.cn/simple \
+    UV_DEFAULT_INDEX=https://mirrors.aliyun.com/pypi/simple/ \
     TZ=Asia/Shanghai
 
 WORKDIR /app