diff --git a/packages/griffith/README-zh_CN.md b/packages/griffith/README-zh_CN.md
index 0205f88d..4d5f7970 100644
--- a/packages/griffith/README-zh_CN.md
+++ b/packages/griffith/README-zh_CN.md
@@ -17,19 +17,19 @@ render(<Player {...props} />)
 
 ### `props`
 
-| 字段                  | 类型                                              | 默认值    | 说明                                       |
-| --------------------- | ------------------------------------------------- | --------- | ------------------------------------------ |
-| `id`                  | `string`                                          |           | 播放器实例唯一标识                         |
-| `title`               | `string`                                          |           | 视频标题                                   |
-| `cover`               | `string`                                          |           | 视频封面图片 URL                           |
-| `duration`            | `number`                                          |           | 初始视频时长。在视频元数据载入后使用实际值 |
-| `sources`             | `sources`                                         |           | 视频播放数据。具体见下,                    |
-| `standalone`          | `boolean`                                         | `false`   | 是否启用 standalone 模式                   |
-| `onBeforePlay`        | `function`                                        | `void`    | 视频播放之前回调函数                       |
-| `shouldObserveResize` | `boolean`                                         | `false`   | 是否监听窗口 resize                        |
-| `initialObjectFit`    | `fill \| \contain \| cover \| none \| scale-down` | `contain` | object-fit 参数                            |
-| `useMSE`              | `boolean`                                         | `false`   | 是否启用 MSE                               |
-| `locale`              | `en \| zh_cn`                                     | `en`      | 界面语言                                   |
+| 字段                  | 类型                                              | 默认值    | 说明                                                   |
+| --------------------- | ------------------------------------------------- | --------- | ------------------------------------------------------ |
+| `id`                  | `string`                                          |           | 播放器实例唯一标识                                     |
+| `title`               | `string`                                          |           | 视频标题                                               |
+| `cover`               | `string`                                          |           | 视频封面图片 URL                                       |
+| `duration`            | `number`                                          |           | 初始视频时长。在视频元数据载入后使用实际值             |
+| `sources`             | `sources`                                         |           | 视频播放数据。具体见下,                                |
+| `standalone`          | `boolean`                                         | `false`   | 是否启用 standalone 模式                               |
+| `onBeforePlay`        | `function`                                        | `void`    | 视频播放之前回调函数                                   |
+| `shouldObserveResize` | `boolean`                                         | `false`   | 是否监听窗口 resize                                    |
+| `initialObjectFit`    | `fill \| \contain \| cover \| none \| scale-down` | `contain` | object-fit 参数                                        |
+| `useMSE`              | `boolean`                                         | `false`   | 是否启用 MSE                                           |
+| `locale`              | `en \| zh_cn \| zh_tw`                            | `en`      | 界面语言。如果没有传，将根据 html 的 `lang` 属性匹配。 |
 
 `sources` 字段：
 
diff --git a/packages/griffith/README.md b/packages/griffith/README.md
index 258b5209..30498acf 100644
--- a/packages/griffith/README.md
+++ b/packages/griffith/README.md
@@ -18,19 +18,19 @@ render(<Player {...props} />)
 
 ### `Props`
 
-| Name                  | Type                                             | Default   | Description                                                              |
-| --------------------- | ------------------------------------------------ | --------- | ------------------------------------------------------------------------ |
-| `id`                  | `string`                                         |           | Unique identifier of the player instance                                 |
-| `title`               | `string`                                         |           | Video title                                                              |
-| `cover`               | `string`                                         |           | Video cover image                                                        |
-| `duration`            | `number`                                         |           | Initial video duration. Use actual values after video metadata is loaded |
-| `sources`             | `sources`                                        |           | Video playback data                                                      |
-| `standalone`          | `boolean`                                        | `false`   | Enable standalone mode                                                   |
-| `onBeforePlay`        | `function`                                       | `void`    | Callback function before video playback                                  |
-| `shouldObserveResize` | `boolean`                                        | `false`   | Listen to the window resize                                              |
-| `initialObjectFit`    | `fill \| contain \| cover \| none \| scale-down` | `contain` | object-fit                                                               |
-| `useMSE`              | `boolean`                                        | `false`   | Enable Media Source Extensions™                                          |
-| `locale`              | `en \| zh_cn`                                    | `en`      | UI Locale                                                                |
+| Name                  | Type                                             | Default   | Description                                                                              |
+| --------------------- | ------------------------------------------------ | --------- | ---------------------------------------------------------------------------------------- |
+| `id`                  | `string`                                         |           | Unique identifier of the player instance                                                 |
+| `title`               | `string`                                         |           | Video title                                                                              |
+| `cover`               | `string`                                         |           | Video cover image                                                                        |
+| `duration`            | `number`                                         |           | Initial video duration. Use actual values after video metadata is loaded                 |
+| `sources`             | `sources`                                        |           | Video playback data                                                                      |
+| `standalone`          | `boolean`                                        | `false`   | Enable standalone mode                                                                   |
+| `onBeforePlay`        | `function`                                       | `void`    | Callback function before video playback                                                  |
+| `shouldObserveResize` | `boolean`                                        | `false`   | Listen to the window resize                                                              |
+| `initialObjectFit`    | `fill \| contain \| cover \| none \| scale-down` | `contain` | object-fit                                                                               |
+| `useMSE`              | `boolean`                                        | `false`   | Enable Media Source Extensions™                                                          |
+| `locale`              | `en \| zh_cn \| zh_tw`                           | `en`      | UI Locale. If not provided, Griffith will try to guess from `lang` attribute of the html |
 
 `sources`:
 
diff --git a/packages/griffith/index.d.ts b/packages/griffith/index.d.ts
index e4803113..7ea48d72 100644
--- a/packages/griffith/index.d.ts
+++ b/packages/griffith/index.d.ts
@@ -26,7 +26,7 @@ interface PlayerContainerProps {
   shouldObserveResize?: boolean
   initialObjectFit?: 'fill' | 'contain' | 'cover' | 'none' | 'scale-down'
   useMSE?: boolean
-  locale?: 'en' | 'zh_cn'
+  locale?: 'en' | 'zh_cn' | 'zh-tw'
 }
 
 interface Subscription {