diff --git a/README.md b/README.md
index 081bd2fcc4f7b7572a3f9073a4b486a4d0aeb115..3bdba650d3c46ec0d34494c28045bdfded72c331 100644
--- a/README.md
+++ b/README.md
@@ -20,3 +20,8 @@ deactivate
 ```
 pip3 install -r requirements.txt
 ```
+
+如果有新安装的包,需要更新requirements.txt文件
+```
+pip freeze > requirements.txt
+```
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