diff --git a/Dockerfile b/Dockerfile
index 4d1798f..3c49e09 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,8 +3,10 @@ FROM python:3.12-slim as builder
 WORKDIR /app
 
 # 配置apt使用国内镜像源
-RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
-    && sed -i 's/security.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
+RUN echo "deb https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list \
+    && echo "deb https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware" >> /etc/apt/sources.list \
+    && echo "deb https://mirrors.ustc.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware" >> /etc/apt/sources.list \
+    && echo "deb https://mirrors.ustc.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware" >> /etc/apt/sources.list
 
 # 安装构建依赖
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -23,10 +25,6 @@ FROM python:3.12-slim
 
 WORKDIR /app
 
-# 配置apt使用国内镜像源
-RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
-    && sed -i 's/security.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
-
 # 创建非root用户
 RUN useradd -m -u 1000 appuser