diff --git a/Dockerfile b/Dockerfile
index 2c29ad4..19bc15a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
-FROM debian:bookworm
+FROM debian:bullseye
 
 # 切换 Debian 镜像源为腾讯云源，更新包列表并安装依赖
-RUN sed -i 's/deb.debian.org/mirrors.tencent.com/g' /etc/apt/sources.list.d/debian.sources \
+RUN sed -i 's/deb.debian.org/mirrors.tencent.com/g' /etc/apt/sources.list \
     && apt update && apt upgrade -y \
     && apt install -y \
     locales \