diff --git a/README.md b/README.md
index 3d338e8..0fced29 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ thinkphp5 验证码类库
 使用TP5的内置验证功能即可
 ~~~
 $this->validate($data,[
-    'captcha|验证码'=>'required|captcha'
+    'captcha|验证码'=>'require|captcha'
 ]);
 ~~~
 或者手动验证