diff --git a/api/src/main/java/org/opencord/igmpproxy/GroupMemberIdSerializer.java b/api/src/main/java/org/opencord/igmpproxy/GroupMemberIdSerializer.java
index 370148a..6d1c7da 100644
--- a/api/src/main/java/org/opencord/igmpproxy/GroupMemberIdSerializer.java
+++ b/api/src/main/java/org/opencord/igmpproxy/GroupMemberIdSerializer.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/IgmpLeadershipService.java b/api/src/main/java/org/opencord/igmpproxy/IgmpLeadershipService.java
index c3563a4..c28f67b 100644
--- a/api/src/main/java/org/opencord/igmpproxy/IgmpLeadershipService.java
+++ b/api/src/main/java/org/opencord/igmpproxy/IgmpLeadershipService.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticType.java b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticType.java
index 0a94569..6df7286 100644
--- a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticType.java
+++ b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEvent.java b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEvent.java
index 6717336..37d49b9 100644
--- a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEvent.java
+++ b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEvent.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEventListener.java b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEventListener.java
index 7bdf8e8..7b91342 100644
--- a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEventListener.java
+++ b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsEventListener.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsService.java b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsService.java
index 2a5b228..2925748 100644
--- a/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsService.java
+++ b/api/src/main/java/org/opencord/igmpproxy/IgmpStatisticsService.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-present Open Networking Foundation
+ * Copyright 2018-2023 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/package-info.java b/api/src/main/java/org/opencord/igmpproxy/package-info.java
index f261bd7..005fb7c 100644
--- a/api/src/main/java/org/opencord/igmpproxy/package-info.java
+++ b/api/src/main/java/org/opencord/igmpproxy/package-info.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachine.java b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachine.java
index ae79931..7a585db 100644
--- a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachine.java
+++ b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachine.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineId.java b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineId.java
index 38d2bf1..08b674e 100644
--- a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineId.java
+++ b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineId.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineIdSerializer.java b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineIdSerializer.java
index f7c747e..679df5f 100644
--- a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineIdSerializer.java
+++ b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineIdSerializer.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineService.java b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineService.java
index c8ed49e..10b9117 100644
--- a/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineService.java
+++ b/api/src/main/java/org/opencord/igmpproxy/statemachine/StateMachineService.java
@@ -1,5 +1,5 @@
 /*
- * 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.
diff --git a/api/src/main/java/org/opencord/igmpproxy/statemachine/package-info.java b/api/src/main/java/org/opencord/igmpproxy/statemachine/package-info.java
index 3270750..0a73c56 100644
--- a/api/src/main/java/org/opencord/igmpproxy/statemachine/package-info.java
+++ b/api/src/main/java/org/opencord/igmpproxy/statemachine/package-info.java
@@ -1,5 +1,5 @@
 /*
- * 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.