diff --git a/Dockerfile b/Dockerfile
index 1449a19..36232e3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM python:3.9
-RUN python3 -m pip config set global.index-url https://mirrors.aliyun.com/pypi/simple
+RUN python3 -m pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
 RUN python3 -m pip install poetry && poetry config virtualenvs.create false
 WORKDIR /app
 COPY ./pyproject.toml ./poetry.lock* /app/