diff --git a/LICENSE.md b/LICENSE.md
index 57780a78..8b5f3bb0 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 ## MIT License
 
-Copyright (c) 2025 Peter Cottle
+Copyright (c) 2012-2025 Peter Cottle
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal