diff --git a/README.md b/README.md
index bb1b4dd..540a41e 100644
--- a/README.md
+++ b/README.md
@@ -22,4 +22,7 @@ nvm install v15.5.1
 # 切换Node版本
 nvm use system
 nvm use 14.15    # 不用全部打出版本号
+
+# 更新nvm
+nvm-update
 ```
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