diff --git a/Dockerfile b/Dockerfile
index 199f4b3..f4d99be 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ WORKDIR /app
 COPY . /app
 
 RUN pip config set global.index-url https://pypi.mirrors.ustc.edu.cn/simple 
+RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
 
 ENV PYHTONUNBUFFERED=1
 RUN apt-get update && apt-get -y install tesseract-ocr