diff --git a/Dockerfile b/Dockerfile
index befef7a..240285d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,15 +7,17 @@ EXPOSE 9996
 ENV TZ=Asia/Shanghai
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
-# 安装字体和依赖
-RUN apt-get update && apt-get install -y \
+# 安装字体和依赖（替换国内源，解决下载卡顿）
+RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list && \
+    sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list && \
+    apt-get update && apt-get install -y \
     fonts-liberation \
     fonts-dejavu-core \
     fonts-wqy-zenhei \
     fontconfig \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
- 
+	
 # 重建字体缓存
 RUN fc-cache -fv