diff --git a/_copyright.txt b/_copyright.txt
index 79f3829..28ebfdf 100644
--- a/_copyright.txt
+++ b/_copyright.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2010-2017, Adam Muntner
+Copyright (c) 2010-2019, Adam Muntner
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: