diff --git a/package.json b/package.json
index ae31b5f0..29f4d696 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,8 @@
     "dojineko (https://github.com/dojineko)",
     "Romain Bazile (https://github.com/gromain)",
     "Bruno Paz (https://github.com/brpaz)",
-    "Fabian Mueller (https://github.com/dotcs)"
+    "Fabian Mueller (https://github.com/dotcs)",
+    "Yoshihisa Mochihara (https://github.com/yosmoc)"
   ],
   "bugs": {
     "url": "https://github.com/BoostIO/Boostnote/issues"
diff --git a/readme.md b/readme.md
index 49f4dabb..1c43fc5f 100644
--- a/readme.md
+++ b/readme.md
@@ -61,6 +61,7 @@ We just want you to enjoying writing anything. :grinning:
 - [Romain Bazile](https://github.com/gromain)
 - [Bruno Paz](https://github.com/brpaz)
 - [Fabian Mueller](https://github.com/dotcs)
+- [Yoshihisa Mochihara](https://github.com/yosmoc)
 
 ## Copyright & License