diff --git a/perception/detection_by_tracker/package.xml b/perception/detection_by_tracker/package.xml
index 21db6feeb4e8d..dae58f2d7da78 100644
--- a/perception/detection_by_tracker/package.xml
+++ b/perception/detection_by_tracker/package.xml
@@ -6,6 +6,7 @@
   <description>The ROS 2 detection_by_tracker package</description>
   <maintainer email="yukihiro.saito@tier4.jp">Yukihiro Saito</maintainer>
   <maintainer email="yoshi.ri@tier4.jp">Yoshi Ri</maintainer>
+  <maintainer email="taekjin.lee@tier4.jp">Taekjin Lee</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
diff --git a/perception/multi_object_tracker/package.xml b/perception/multi_object_tracker/package.xml
index 763bd12fab79e..699b28222f63f 100644
--- a/perception/multi_object_tracker/package.xml
+++ b/perception/multi_object_tracker/package.xml
@@ -6,6 +6,7 @@
   <description>The ROS 2 multi_object_tracker package</description>
   <maintainer email="yukihiro.saito@tier4.jp">Yukihiro Saito</maintainer>
   <maintainer email="yoshi.ri@tier4.jp">Yoshi Ri</maintainer>
+  <maintainer email="taekjin.lee@tier4.jp">Taekjin Lee</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
diff --git a/perception/object_merger/package.xml b/perception/object_merger/package.xml
index 2c10f6c7c1160..5859e073a74ce 100644
--- a/perception/object_merger/package.xml
+++ b/perception/object_merger/package.xml
@@ -6,6 +6,7 @@
   <description>The object_merger package</description>
   <maintainer email="yukihiro.saito@tier4.jp">Yukihiro Saito</maintainer>
   <maintainer email="yoshi.ri@tier4.jp">Yoshi Ri</maintainer>
+  <maintainer email="taekjin.lee@tier4.jp">Taekjin Lee</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
diff --git a/perception/radar_object_tracker/package.xml b/perception/radar_object_tracker/package.xml
index 6939c54b5be75..a371d9054966a 100644
--- a/perception/radar_object_tracker/package.xml
+++ b/perception/radar_object_tracker/package.xml
@@ -7,6 +7,7 @@
   <maintainer email="yoshi.ri@tier4.jp">Yoshi Ri</maintainer>
   <maintainer email="yukihiro.saito@tier4.jp">Yukihiro Saito</maintainer>
   <maintainer email="satoshi.tanaka@tier4.jp">Satoshi Tanaka</maintainer>
+  <maintainer email="taekjin.lee@tier4.jp">Taekjin Lee</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>
diff --git a/perception/tracking_object_merger/package.xml b/perception/tracking_object_merger/package.xml
index 58184c090a1e1..027a7bf26d2c4 100644
--- a/perception/tracking_object_merger/package.xml
+++ b/perception/tracking_object_merger/package.xml
@@ -6,6 +6,7 @@
   <description>merge tracking object</description>
   <maintainer email="yukihiro.saito@tier4.jp">Yukihiro Saito</maintainer>
   <maintainer email="yoshi.ri@tier4.jp">Yoshi Ri</maintainer>
+  <maintainer email="taekjin.lee@tier4.jp">Taekjin Lee</maintainer>
   <license>Apache License 2.0</license>
 
   <buildtool_depend>ament_cmake_auto</buildtool_depend>