diff --git a/api/legacy/bbsim.proto b/api/legacy/bbsim.proto
index 73963a1..a0da4ba 100644
--- a/api/legacy/bbsim.proto
+++ b/api/legacy/bbsim.proto
@@ -1,4 +1,4 @@
-// Copyright 2018-2023 Open Networking Foundation (ONF) and the ONF Contributors
+// Copyright 2018-2024 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.