diff --git a/README b/README
index d8edacd..d450a86 100644
--- a/README
+++ b/README
@@ -273,7 +273,7 @@ the following information:
 
 * Copying
 
-Copyright (C) 2009-2019 Sergey Poznyakoff
+Copyright (C) 2009-2021 Sergey Poznyakoff
 
 Permission is granted to anyone to make or distribute verbatim copies
 of this document as received, in any medium, provided that the
diff --git a/wordsplit.3 b/wordsplit.3
index bdf0865..401cad8 100644
--- a/wordsplit.3
+++ b/wordsplit.3
@@ -1,5 +1,5 @@
 .\" This file is part of wordsplit -*- nroff -*-
-.\" Copyright (C) 2009-2019 Sergey Poznyakoff
+.\" Copyright (C) 2009-2021 Sergey Poznyakoff
 .\"
 .\" Wordsplit is free software; you can redistribute it and/or modify
 .\" it under the terms of the GNU General Public License as published by
diff --git a/wordsplit.at b/wordsplit.at
index aa2c87d..293bc9a 100644
--- a/wordsplit.at
+++ b/wordsplit.at
@@ -1,5 +1,5 @@
 # Test suite for wordsplit -*- Autotest -*-
-# Copyright (C) 2014-2019 Sergey Poznyakoff
+# Copyright (C) 2014-2021 Sergey Poznyakoff
 #
 # Wordsplit is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
diff --git a/wordsplit.c b/wordsplit.c
index 1950894..0b9cf15 100644
--- a/wordsplit.c
+++ b/wordsplit.c
@@ -1,5 +1,5 @@
 /* wordsplit - a word splitter
-   Copyright (C) 2009-2019 Sergey Poznyakoff
+   Copyright (C) 2009-2021 Sergey Poznyakoff
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
diff --git a/wordsplit.h b/wordsplit.h
index 7c14cea..794207a 100644
--- a/wordsplit.h
+++ b/wordsplit.h
@@ -1,5 +1,5 @@
 /* wordsplit - a word splitter
-   Copyright (C) 2009-2019 Sergey Poznyakoff
+   Copyright (C) 2009-2021 Sergey Poznyakoff
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
diff --git a/wsp.c b/wsp.c
index 75fd6f5..913a777 100644
--- a/wsp.c
+++ b/wsp.c
@@ -1,5 +1,5 @@
 /* wsp - test program for wordsplit
-   Copyright (C) 2014-2019 Sergey Poznyakoff
+   Copyright (C) 2014-2021 Sergey Poznyakoff
 
    Wordsplit is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the