diff --git a/Dockerfile b/Dockerfile
index ae1dc31..4c3e02d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN chmod 0644 /etc/cron.d/cronjob && \
 
 # 安装Python依赖（如果有）
 COPY ./requirements.txt /app/requirements.txt
-RUN pip install -r requirements.txt
+RUN pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
 
 # 创建日志文件（用于cron输出）
 RUN touch /var/log/cron.log