diff --git a/README.md b/README.md
index ce6cb94..0e9e457 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Consists of three sub-implementations for different protocols:
 
 ## Copyright and license
 
-Copyright (c) 2020 Joakim Frostegård
+Copyright (c) 2020-2021 Joakim Frostegård
 
 Distributed under Apache 2.0 license (details in `LICENSE` file.)