diff --git a/mdl_strict.rb b/mdl_strict.rb
index 2e02e7c..1f7944e 100644
--- a/mdl_strict.rb
+++ b/mdl_strict.rb
@@ -1,4 +1,4 @@
-# Copyright 2017-present Open Networking Foundation
+# Copyright 2017-2023 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.