diff --git a/impl/src/main/resources/custom-topo.py b/impl/src/main/resources/custom-topo.py
index dfb414d..2f9039b 100644
--- a/impl/src/main/resources/custom-topo.py
+++ b/impl/src/main/resources/custom-topo.py
@@ -1,5 +1,5 @@
 '''
- Copyright 2016-present Open Networking Foundation
+ Copyright 2016-2023 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.