diff --git a/LICENSE b/LICENSE
index e59f3556..6bdaf5ca 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
-Copyright (c) 2011 Sam Stephenson
-Copyright (c) 2012 Yamashita, Yuu
+Copyright (c) 2013 Yamashita, Yuu
+Copyright (c) 2013 Sam Stephenson
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/README.md b/README.md
index 1d76d6e8..76e9cf26 100644
--- a/README.md
+++ b/README.md
@@ -451,8 +451,8 @@ tracker](https://github.com/yyuu/pyenv/issues).
 
 (The MIT license)
 
-* Copyright (c) 2011 Sam Stephenson
-* Copyright (c) 2012 Yamashita, Yuu
+* Copyright (c) 2013 Yamashita, Yuu
+* Copyright (c) 2013 Sam Stephenson
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the