diff --git a/makefiles/golang/beautify.mk b/makefiles/golang/beautify.mk
index 6c0d08d..05ee252 100644
--- a/makefiles/golang/beautify.mk
+++ b/makefiles/golang/beautify.mk
@@ -1,6 +1,6 @@
 # -*- makefile -*-
 # -----------------------------------------------------------------------
-# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2022-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/makefiles/golang/help.mk b/makefiles/golang/help.mk
index 3276f0f..a9e16cc 100644
--- a/makefiles/golang/help.mk
+++ b/makefiles/golang/help.mk
@@ -1,6 +1,6 @@
 # -*- makefile -*-
 # -----------------------------------------------------------------------
-# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2022-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/makefiles/golang/include.mk b/makefiles/golang/include.mk
index cd0ce7f..03af39c 100644
--- a/makefiles/golang/include.mk
+++ b/makefiles/golang/include.mk
@@ -1,6 +1,6 @@
 # -*- makefile -*-
 # -----------------------------------------------------------------------
-# Copyright 2023 Open Networking Foundation (ONF) and the ONF Contributors
+# Copyright 2023-2024 Open Networking Foundation (ONF) and the ONF Contributors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.