diff --git a/Dockerfile b/Dockerfile
index acfdc1b..6baa422 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,8 +4,9 @@ WORKDIR /app
 
 COPY requirements.txt /app/
 
-RUN apk add --no-cache --virtual .build-deps gcc musl-dev libffi-dev openssl-dev \
-    && pip install --no-cache-dir -r requirements.txt \
+RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.ustc.edu.cn|g' /etc/apk/repositories \
+    && apk add --no-cache --virtual .build-deps gcc musl-dev libffi-dev openssl-dev \
+    && pip install --no-cache-dir -i https://pypi.tuna.tsinghua.edu.cn/simple -r requirements.txt \
     && apk del .build-deps
 
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