diff --git a/patoolib/programs/clzip.py b/patoolib/programs/clzip.py
index a01fd5b..8120f52 100644
--- a/patoolib/programs/clzip.py
+++ b/patoolib/programs/clzip.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2011 Bastian Kleineidam
+# Copyright (C) 2011-2012 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/lzip.py b/patoolib/programs/lzip.py
index 2d08d48..9b52aa4 100644
--- a/patoolib/programs/lzip.py
+++ b/patoolib/programs/lzip.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2010 Bastian Kleineidam
+# Copyright (C) 2010-2012 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/lzma.py b/patoolib/programs/lzma.py
index 1d39dec..4898804 100644
--- a/patoolib/programs/lzma.py
+++ b/patoolib/programs/lzma.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2010 Bastian Kleineidam
+# Copyright (C) 2010-2012 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/pbzip2.py b/patoolib/programs/pbzip2.py
index 43cf57e..e11961e 100644
--- a/patoolib/programs/pbzip2.py
+++ b/patoolib/programs/pbzip2.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2010 Bastian Kleineidam
+# Copyright (C) 2010-2012 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/pdlzip.py b/patoolib/programs/pdlzip.py
index a01fd5b..8120f52 100644
--- a/patoolib/programs/pdlzip.py
+++ b/patoolib/programs/pdlzip.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2011 Bastian Kleineidam
+# Copyright (C) 2011-2012 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/tests/test_diff.py b/tests/test_diff.py
index 0937b99..6b1072c 100644
--- a/tests/test_diff.py
+++ b/tests/test_diff.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2010 Bastian Kleineidam
+# Copyright (C) 2010-2012 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/tests/test_repack.py b/tests/test_repack.py
index 8c81129..b455a73 100644
--- a/tests/test_repack.py
+++ b/tests/test_repack.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2010-2011 Bastian Kleineidam
+# Copyright (C) 2010-2012 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