diff --git a/Dockerfile b/Dockerfile
index da3a9b0..7f90f61 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM python:3.10-slim-buster
 
 COPY requirements.txt /tmp/requirements.txt
 
-RUN pip install -r /tmp/requirements.txt -i https://pypi.douban.com/simple
+RUN pip install -r /tmp/requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
 
 COPY . /app