diff --git a/COPYING.md b/COPYING.md
index 4fdecb3..79e26a1 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -1,9 +1,20 @@
 # Star Yuuki BOT - Yuuki
 
+    This Source Code Form is subject to the terms of the Mozilla Public
+    License, v. 2.0. If a copy of the MPL was not distributed with this
+    file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
 1)You can edit/copy these files, but you need to keep the original "[COPYING.md](COPYING.md)", "[LICENSE.md](LICENSE.md)" and  in the program which you did it.
 
-2)The copyright of [Line Services](https://line.starinc.xyz/) contents belongs to [Star Inc.](https://starinc.xyz), we DO NOT assume any legal responsibility.
+2)The copyright of [Line Services](https://line.starinc.xyz/) contents belongs to [Star Inc.](https://starinc.xyz)
 
-3)Enjoy using ;)
+3)Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
+
+4)If your using cause any legal problem, we DO NOT assume any responsibility.
+
+5)Enjoy using ;)
+
+    This Source Code Form is "Incompatible With Secondary Licenses", as
+    defined by the Mozilla Public License, v. 2.0.
 
 Copyright 2019 [Star Inc.](https://starinc.xyz) All Rights Reserved.
\ No newline at end of file
diff --git a/README.md b/README.md
index 0c44369..1b5c33f 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Yeah! This is the BOT which was the first Chinese LINE Group Security BOT.
 Now, it is OpenSource.
 
 ## License
-The software licensed under Mozilla Public LICENSE 2.0.
+The software licensed under [Mozilla Public License 2.0](LICENSE.md) with [COPYING.md](COPYING.md).
 
 ## Warning
 Some function of old version maybe will make your LINE account be banned.