diff --git a/Dockerfile b/Dockerfile
index f2167ff..c16e259 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,7 @@ WORKDIR /app
 
 COPY . /app
 
+RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
 RUN pip config set global.index-url https://pypi.mirrors.ustc.edu.cn/simple 
 RUN apt-get update && apt-get install ffmpeg libsm6 libxext6  -y
 RUN pip install -r requirements.txt