diff --git a/doc/holidays/refresh b/doc/holidays/refresh
index 59930dc1..a68e64a6 100755
--- a/doc/holidays/refresh
+++ b/doc/holidays/refresh
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 ###############################################################################
 #
-# Copyright 2006 - 2016, Paul Beckingham, Federico Hernandez.
+# Copyright 2016, 2018 - 2019, Thomas Lauf, Paul Beckingham, Federico Hernandez.
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal