diff --git a/README.md b/README.md
index b261ff3..33c4a0a 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ conda activate qa_env
 ### 4. 安装对应包
 
 ```bash
-pip install -r requirements.txt
+pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
 ```