diff --git a/LICENSE b/LICENSE
index fb7d95d70ba82..83013469b9868 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2014, Michael Bostock
+Copyright (c) 2010-2014, Michael Bostock
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without