diff --git a/localization/localization_error_monitor/package.xml b/localization/localization_error_monitor/package.xml
index 23e71f2a844cd..4a186bdf95ed1 100644
--- a/localization/localization_error_monitor/package.xml
+++ b/localization/localization_error_monitor/package.xml
@@ -5,6 +5,7 @@
   <version>0.1.0</version>
   <description>ros node for monitoring localization error</description>
   <maintainer email="yamato.ando@tier4.jp">Yamato Ando</maintainer>
+  <maintainer email="koji.minoda@tier4.jp">Koji Minoda</maintainer>
   <maintainer email="masahiro.sakamoto@tier4.jp">Masahiro Sakamoto</maintainer>
   <license>Apache License 2.0</license>
 
diff --git a/sensing/gnss_poser/package.xml b/sensing/gnss_poser/package.xml
index 7d80bc903a550..5bd75020985da 100644
--- a/sensing/gnss_poser/package.xml
+++ b/sensing/gnss_poser/package.xml
@@ -5,6 +5,7 @@
   <version>1.0.0</version>
   <description>The ROS 2 gnss_poser package</description>
   <maintainer email="yamato.ando@tier4.jp">Yamato Ando</maintainer>
+  <maintainer email="koji.minoda@tier4.jp">Koji Minoda</maintainer>
   <license>Apache License 2.0</license>
   <author email="ryo.watanabe@tier4.jp">Ryo Watanabe</author>