diff --git a/iOS/ImSDK/README.md b/iOS/ImSDK/README.md
index 9abd20838..667055ba3 100644
--- a/iOS/ImSDK/README.md
+++ b/iOS/ImSDK/README.md
@@ -6,7 +6,7 @@
 [最新 ImSDK.framework 下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/5.1.14/TIM_SDK_iOS_latest_framework.zip)
 
 ### 精简版
-[最新 ImSDK_Smart.framework下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/restructure/ios/5.1.122/ImSDK_Smart.framework.zip)
+[最新 ImSDK_Smart.framework下载](https://imsdk-1252463788.cos.ap-guangzhou.myqcloud.com/restructure/ios/5.1.123/ImSDK_Smart.framework.zip)
 
 
 ### [标准版与精简版差异对比](https://github.com/tencentyun/TIMSDK#%E6%A0%87%E5%87%86%E7%89%88%E4%B8%8E%E7%B2%BE%E7%AE%80%E7%89%88%E5%B7%AE%E5%BC%82%E5%AF%B9%E6%AF%94)