diff --git a/turtlebot3_simulations_ci.repos b/turtlebot3_simulations_ci.repos
index 1fa5558..bf70345 100644
--- a/turtlebot3_simulations_ci.repos
+++ b/turtlebot3_simulations_ci.repos
@@ -10,7 +10,7 @@ repositories:
   utils/DynamixelSDK:
     type: git
     url: https://github.com/ROBOTIS-GIT/DynamixelSDK.git
-    version: humble
+    version: main
   utils/hls_lfcd_lds_driver:
     type: git
     url: https://github.com/ROBOTIS-GIT/hls_lfcd_lds_driver.git