diff --git a/docker/Dockerfile b/docker/Dockerfile
index ff855c8..ba7c789 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -13,6 +13,9 @@ ENV TZ=Asia/Shanghai \
     TA_LIBRARY_PATH=/usr/local/lib \
     TA_INCLUDE_PATH=/usr/local/include
 
+# 换国内 debian 镜像(清华,trixie deb822 格式;原 deb.debian.org 国内不稳 apt 反复重试)
+RUN { sed -i 's|deb.debian.org|mirrors.tuna.tsinghua.edu.cn|g; s|security.debian.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || sed -i 's|deb.debian.org|mirrors.tuna.tsinghua.edu.cn|g; s|security.debian.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apt/sources.list 2>/dev/null; }
+
 # 安装运行时和编译依赖
 RUN apt-get update && apt-get install -y --no-install-recommends \
     curl \