diff --git a/COPYING b/COPYING
index 604eb1c1d..f5e2b1d39 100644
--- a/COPYING
+++ b/COPYING
@@ -1,9 +1,15 @@
 
 --------------------------------------------------------------------------
 
-This program, "bzip2", the associated library "libbzip2", and all
-documentation, are copyright (C) 1996-2010 Julian R Seward.  All
-rights reserved.
+The original program, "bzip2", the associated library "libbzip2", and all
+documentation, are
+
+Copyright (C) 1996-2021 Julian R Seward.
+Copyright (C) 2019-2020 Federico Mena Quintero
+Copyright (C) 2021 Micah Snyder
+
+This Rust translation, "libbzip2-rs" is a derived work based on "bzip2" and
+"libbzip2", and is Copyright (C) 2024-2025 Trifecta Tech Foundation and contributors
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions