diff --git a/Dockerfile b/Dockerfile
index 47392b9..22ba731 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,6 +2,15 @@ FROM python:3.8-slim
 ENV PYTHONIOENCODING=utf-8
 ENV TIME_ZONE Asia/Shanghai
 
+# 更新apt-get源
+RUN cp /etc/apt/sources.list /etc/apt/sources.list.bak && \
+    echo > /etc/apt/sources.list && \
+    cat /etc/apt/sources.list && \
+    echo  "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free" >/etc/apt/sources.list && \
+    echo  "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free" >>/etc/apt/sources.list && \
+    echo  "deb http://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free" >>/etc/apt/sources.list && \
+    echo  "deb http://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates main contrib non-free" >>/etc/apt/sources.list
+
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends build-essential gcc wget