diff --git a/LICENSE b/LICENSE
index a9bcd4d..257404f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,8 @@
 MIT License
 
 Copyright (c) 2022-2024 Genome Research Ltd.
+except `bin/filter_five_end.pl`:
+Copyright (c) 2017 Arima Genomics, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal