diff --git a/src/MQTTAsync.c b/src/MQTTAsync.c
index 168c40c6..178c1c2e 100644
--- a/src/MQTTAsync.c
+++ b/src/MQTTAsync.c
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2025 IBM Corp., Ian Craggs and others
+ * Copyright (c) 2009, 2026 IBM Corp., Ian Craggs and others
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
diff --git a/src/MQTTAsyncUtils.c b/src/MQTTAsyncUtils.c
index 152900fc..4ca23a65 100644
--- a/src/MQTTAsyncUtils.c
+++ b/src/MQTTAsyncUtils.c
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2025 IBM Corp., Ian Craggs and others
+ * Copyright (c) 2009, 2026 IBM Corp., Ian Craggs and others
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
diff --git a/src/MQTTClient.c b/src/MQTTClient.c
index 34196718..555fe9e1 100644
--- a/src/MQTTClient.c
+++ b/src/MQTTClient.c
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2024 IBM Corp., Ian Craggs and others
+ * Copyright (c) 2009, 2026 IBM Corp., Ian Craggs and others
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
diff --git a/src/Socket.h b/src/Socket.h
index efb91c41..eb89c73a 100644
--- a/src/Socket.h
+++ b/src/Socket.h
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2022 IBM Corp., Ian Craggs and others
+ * Copyright (c) 2009, 2026 IBM Corp., Ian Craggs and others
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
diff --git a/src/Thread.c b/src/Thread.c
index bcf107e0..fa8722dc 100644
--- a/src/Thread.c
+++ b/src/Thread.c
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2025, 2026 IBM Corp. and Ian Craggs
+ * Copyright (c) 2009, 2026 IBM Corp. and Ian Craggs
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
diff --git a/src/Thread.h b/src/Thread.h
index 85e969fc..0cf428be 100644
--- a/src/Thread.h
+++ b/src/Thread.h
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2023, 2026 IBM Corp.
+ * Copyright (c) 2009, 2026 IBM Corp.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0
diff --git a/test/thread.c b/test/thread.c
index 88e08403..50a06b98 100644
--- a/test/thread.c
+++ b/test/thread.c
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2025 IBM Corp.
+ * Copyright (c) 2009, 2026 IBM Corp.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v2.0