diff --git a/README.md b/README.md
index bba55be..4194c61 100644
--- a/README.md
+++ b/README.md
@@ -11,11 +11,29 @@ instead, just visit this website when needed.
 
 [Simple TimeKeeper](http://www.simpletimekeeper.com/)
 
-Author
-------
-[@yasulab](http://twitter.com/yasulab)
 
 License
 -------
-SimpleTimeKeeper is distributed under MIT License. See `LICENSE` for details.
+
+The MIT License (MIT)
+
+Copyright © 2012-2015 [YassLab](http://yasslab.jp)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.