diff --git a/iOS/TUIKit/README.md b/iOS/TUIKit/README.md
index ea07c814325..fd29a7109db 100644
--- a/iOS/TUIKit/README.md
+++ b/iOS/TUIKit/README.md
@@ -2,4 +2,4 @@
 
 ## 下载地址
 
-[最新 TUIKit 下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/4.6.100/TIM_SDK_TUIKIT_iOS_latest_framework.zip)
+[最新 TUIKit 下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/4.8.50/TIM_SDK_TUIKIT_iOS_latest_framework.zip)