diff --git a/Dockerfile b/Dockerfile
index d8299ec..5a4ffcf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -53,8 +53,8 @@ ENV TZ=Asia/Shanghai
 ENV PATH="/opt/venv/bin:$PATH"
 
 # 安装必要系统工具 + Node + Python
-RUN sed -i 's@deb.debian.org@mirrors.tuna.tsinghua.edu.cn@g' /etc/apt/sources.list \
-    && sed -i 's@security.debian.org@mirrors.tuna.tsinghua.edu.cn@g' /etc/apt/sources.list \
+RUN sed -i 's@deb.debian.org@mirrors.tuna.tsinghua.edu.cn@g' /etc/apt/sources.list.d/debian.sources \
+    && sed -i 's@security.debian.org@mirrors.tuna.tsinghua.edu.cn@g' /etc/apt/sources.list.d/debian.sources \
     && echo "${TZ}" > /etc/timezone \
     && ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
     && apt-get update \