diff --git a/LICENSE.txt b/LICENSE.txt
index 3155660..f41fdcc 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright 2017 Jonathan Cobb
+Copyright 2017-2021 Jonathan Cobb
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.