diff --git a/launch/tier4_system_launch/package.xml b/launch/tier4_system_launch/package.xml
index 0870a384ea7d3..789cf136f1152 100644
--- a/launch/tier4_system_launch/package.xml
+++ b/launch/tier4_system_launch/package.xml
@@ -5,7 +5,7 @@
   <version>0.1.0</version>
   <description>The tier4_system_launch package</description>
   <maintainer email="fumihito.ito@tier4.jp">Fumihito Ito</maintainer>
-  <maintainer email="akihiro.sakurai@tier4.jp">asana17</maintainer>
+  <maintainer email="tetsuhiro.kawaguchi@tier4.jp">TetsuKawa</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
diff --git a/system/dummy_diag_publisher/package.xml b/system/dummy_diag_publisher/package.xml
index 1df190b282038..64441ad338f2f 100644
--- a/system/dummy_diag_publisher/package.xml
+++ b/system/dummy_diag_publisher/package.xml
@@ -4,8 +4,8 @@
   <name>dummy_diag_publisher</name>
   <version>0.1.0</version>
   <description>The dummy_diag_publisher ROS 2 package</description>
-  <maintainer email="akihiro.sakurai@tier4.jp">Akihiro Sakurai</maintainer>
   <maintainer email="fumihito.ito@tier4.jp">Fumihito Ito</maintainer>
+  <maintainer email="tetsuhiro.kawaguchi@tier4.jp">TetsuKawa</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
diff --git a/system/system_monitor/package.xml b/system/system_monitor/package.xml
index 470e82e3dd757..bbb01b5437fbe 100644
--- a/system/system_monitor/package.xml
+++ b/system/system_monitor/package.xml
@@ -5,7 +5,7 @@
   <version>1.13.0</version>
   <description>The system_monitor package</description>
   <maintainer email="fumihito.ito@tier4.jp">Fumihito Ito</maintainer>
-  <maintainer email="akihiro.sakurai@tier4.jp">asana17</maintainer>
+  <maintainer email="tetsuhiro.kawaguchi@tier4.jp">TetsuKawa</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>