diff --git a/patoolib/programs/py_bz2.py b/patoolib/programs/py_bz2.py
index 4d30377..2be3669 100644
--- a/patoolib/programs/py_bz2.py
+++ b/patoolib/programs/py_bz2.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2012 Bastian Kleineidam
+# Copyright (C) 2012-2013 Bastian Kleineidam
 #
 # 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
diff --git a/patoolib/programs/py_gzip.py b/patoolib/programs/py_gzip.py
index 0878927..12c040e 100644
--- a/patoolib/programs/py_gzip.py
+++ b/patoolib/programs/py_gzip.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2012 Bastian Kleineidam
+# Copyright (C) 2012-2013 Bastian Kleineidam
 #
 # 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