diff --git a/include/argparse/argparse.hpp b/include/argparse/argparse.hpp
index 6c938ae..599e010 100644
--- a/include/argparse/argparse.hpp
+++ b/include/argparse/argparse.hpp
@@ -7,7 +7,8 @@
 
 Licensed under the MIT License <http://opensource.org/licenses/MIT>.
 SPDX-License-Identifier: MIT
-Copyright (c) 2019 Pranav Srinivas Kumar <pranav.srinivas.kumar@gmail.com>.
+Copyright (c) 2019-2021 Pranav Srinivas Kumar <pranav.srinivas.kumar@gmail.com>
+and other contributors.
 
 Permission is hereby  granted, free of charge, to any  person obtaining a copy
 of this software and associated  documentation files (the "Software"), to deal