diff --git a/COPYING b/COPYING
index 3adbc01..bcf96fb 100644
--- a/COPYING
+++ b/COPYING
@@ -4,8 +4,6 @@ Copyright (c) 2020-2022 Alex Kotov
 
 Copyright (c) 2011      Nicholas J. Kain
 Copyright (c) 2011-2015 Rich Felker
-Copyright (c) 2014-2019 Marco Paland
-Copyright (c) 2017-2022 Embedded Artistry LLC
 Copyright (c) 2022      Alexander Monakov
 
 Permission is hereby granted, free of charge, to any person obtaining a copy