diff --git a/Dockerfile b/Dockerfile
index fb7e15c..4aaa579 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,8 +8,9 @@ COPY . /app/MrDoc/
 
 WORKDIR /app/MrDoc
 
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositories
+
 RUN  set -x \
-    && apk add wqy-zenhei --update-cache --repository  http://dl-3.alpinelinux.org/alpine/edge/testing/ --allow-untrusted \
     && apk add --no-cache --virtual .build-deps build-base g++ gcc libxslt-dev python2-dev linux-headers \
     && apk add --no-cache pwgen git tzdata zlib-dev freetype-dev jpeg-dev  mariadb-dev postgresql-dev \
     && python -m pip install --upgrade pip \