diff --git a/Timestamp-Synchronization.md b/Timestamp-Synchronization.md
index f3cac90..f444264 100644
--- a/Timestamp-Synchronization.md
+++ b/Timestamp-Synchronization.md
@@ -82,7 +82,7 @@ Remarks: If the data output by the GPS module is 485 level, the TTL to 485 modul
 
 #### 2.2.2.2 Configuration
 
-Mid firmware version: >= v03.07.0000, SDK version >= v2.0.0
+Mid firmware version: >= v03.07.0000, SDK version >= v2.1.0
 
 **Use ROS driver**