diff --git a/TRTC-API-Example-ActiveX/SDK/README.md b/TRTC-API-Example-ActiveX/SDK/README.md
index 09c59f2..43e4fed 100644
--- a/TRTC-API-Example-ActiveX/SDK/README.md
+++ b/TRTC-API-Example-ActiveX/SDK/README.md
@@ -2,6 +2,6 @@
 
 ## Download Link
 
-[Download SDK](https://liteav.sdk.qcloud.com/download/latest/TXLiteAVSDK_TRTC_Win_ActiveX_latest.zip)
+[Download SDK](https://liteav.sdk.qcloud.com/download/latest/v1/TXLiteAVSDK_TRTC_Win_ActiveX_latest.zip)
 
 After downloading, extract the contents and copy the LiteAVActiveXSDK.cab file from the SDK directory to the TRTC-API-Example-ActiveX/SDK directory.
\ No newline at end of file
diff --git a/TRTC-API-Example-C++/SDK/README.md b/TRTC-API-Example-C++/SDK/README.md
index 872667c..13cb3f9 100644
--- a/TRTC-API-Example-C++/SDK/README.md
+++ b/TRTC-API-Example-C++/SDK/README.md
@@ -2,4 +2,4 @@
 
 ## Download Link
 
-[Download SDK](https://liteav.sdk.qcloud.com/download/latest/TXLiteAVSDK_TRTC_Win_latest.zip)
\ No newline at end of file
+[Download SDK](https://liteav.sdk.qcloud.com/download/latest/v1/TXLiteAVSDK_TRTC_Win_latest.zip)
\ No newline at end of file
diff --git a/TRTC-API-Example-CSharp/SDK/README.md b/TRTC-API-Example-CSharp/SDK/README.md
index d37463e..63ce691 100644
--- a/TRTC-API-Example-CSharp/SDK/README.md
+++ b/TRTC-API-Example-CSharp/SDK/README.md
@@ -2,4 +2,4 @@
 
 ## Download Link
 
-[Download SDK](https://liteav.sdk.qcloud.com/download/latest/TXLiteAVSDK_TRTC_Win_CSharp_latest.zip)
\ No newline at end of file
+[Download SDK](https://liteav.sdk.qcloud.com/download/latest/v1/TXLiteAVSDK_TRTC_Win_CSharp_latest.zip)
\ No newline at end of file