diff --git a/components/input/index.en-US.md b/components/input/index.en-US.md
index 70ae4ea84f..7fe9cece2d 100644
--- a/components/input/index.en-US.md
+++ b/components/input/index.en-US.md
@@ -49,8 +49,8 @@ The rest of the props of Input are exactly the same as the original [input](http
 | allowClear | If allow to remove input content with clear icon | boolean | false |  |
 | onResize | The callback function that is triggered when resize | function({ width, height }) | - |  |
 | bordered | Whether has border style | boolean | true | 4.5.0 |
-| showCount | Whether show text count | boolean | false |  |
-| maxLength | The max length | number | - |  |
+| showCount | Whether show text count | boolean | false | 4.7.0 |
+| maxLength | The max length | number | - | 4.7.0 |
 
 The rest of the props of `Input.TextArea` are the same as the original [textarea](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/textarea).
 
diff --git a/components/input/index.zh-CN.md b/components/input/index.zh-CN.md
index 56431164e1..67d9903227 100644
--- a/components/input/index.zh-CN.md
+++ b/components/input/index.zh-CN.md
@@ -50,8 +50,8 @@ Input 的其他属性和 React 自带的 [input](https://facebook.github.io/reac
 | allowClear | 可以点击清除图标删除内容 | boolean | false |  |
 | onResize | resize 回调 | function({ width, height }) | - |  |
 | bordered | 是否有边框 | boolean | true | 4.5.0 |
-| showCount | 是否展示字数 | boolean | false |  |
-| maxLength | 内容最大长度 | number | - |  |
+| showCount | 是否展示字数 | boolean | false | 4.7.0 |
+| maxLength | 内容最大长度 | number | - | 4.7.0 |
 
 `Input.TextArea` 的其他属性和浏览器自带的 [textarea](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/textarea) 一致。