diff --git a/COPYRIGHT b/COPYRIGHT
index 3ef692be..6ed2bc13 100755
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,5 +1,5 @@
 
-Copyright (C) 2003-2018
+Copyright (C) 2003-2024
      Noriaki Ando and the OpenRTM-aist Project team
      Intelligent Systems Research Institute,
      National Institute of Advanced Industrial Science and Technology (AIST),
diff --git a/OpenRTM_aist/Manager.py b/OpenRTM_aist/Manager.py
index 42be5331..9cde7920 100644
--- a/OpenRTM_aist/Manager.py
+++ b/OpenRTM_aist/Manager.py
@@ -1680,9 +1680,9 @@ def initLogger(self):
 
         self._rtcout.RTC_INFO(
             "%s", self._config.getProperty("openrtm.version"))
-        self._rtcout.RTC_INFO("Copyright (C) 2003-2022, Noriaki Ando and OpenRTM development team,")
+        self._rtcout.RTC_INFO("Copyright (C) 2003-2024, Noriaki Ando and OpenRTM development team,")
         self._rtcout.RTC_INFO("  Intelligent Systems Research Institute, AIST,")
-        self._rtcout.RTC_INFO("Copyright (C) 2022, Noriaki Ando and OpenRTM development team,")
+        self._rtcout.RTC_INFO("Copyright (C) 2024, Noriaki Ando and OpenRTM development team,")
         self._rtcout.RTC_INFO("  Industrial Cyber-Physical Research Center, AIST,")
         self._rtcout.RTC_INFO("  All right reserved.")
         self._rtcout.RTC_INFO("Manager starting.")