diff --git a/package.xml b/package.xml
index 32d9725..57daeb8 100644
--- a/package.xml
+++ b/package.xml
@@ -2,7 +2,7 @@
 <?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
 <package format="3">
   <name>turtlebot3_msgs</name>
-  <version>2.2.0</version>
+  <version>2.2.1</version>
   <description>
     Message and service types: custom messages and services for TurtleBot3 packages for ROS2
   </description>
@@ -12,7 +12,7 @@
   <author email="kkjong@robotis.com">Gilbert</author>
   <author email="vgh@amazon.com">Vineet Ghatge</author>
   <author email="jhshim@robotis.com">Ryan Shim</author>
-  <maintainer email="pyo@robotis.com">Pyo</maintainer>
+  <maintainer email="willson@robotis.com">Will Son</maintainer>
   <url type="website">http://wiki.ros.org/turtlebot3_msgs</url>
   <url type="emanual">http://turtlebot3.robotis.com</url>
   <url type="repository">https://github.com/ROBOTIS-GIT/turtlebot3_msgs</url>