diff --git a/rk05.cpp b/rk05.cpp
index 75597ad..905cb82 100644
--- a/rk05.cpp
+++ b/rk05.cpp
@@ -1,4 +1,4 @@
-// (C) 2018-2023 by Folkert van Heusden
+// (C) 2018-2024 by Folkert van Heusden
 // Released under MIT license
 
 #include <errno.h>
diff --git a/rk05.h b/rk05.h
index 5f03941..68d03f1 100644
--- a/rk05.h
+++ b/rk05.h
@@ -1,4 +1,4 @@
-// (C) 2018-2023 by Folkert van Heusden
+// (C) 2018-2024 by Folkert van Heusden
 // Released under MIT license
 
 #pragma once