diff --git a/.all-contributorsrc b/.all-contributorsrc
index f21c152..f2e17d4 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -79,6 +79,16 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "Tiryoh",
+      "name": "Daisuke Sato",
+      "avatar_url": "https://avatars.githubusercontent.com/u/3256629?v=4",
+      "profile": "https://profile.tiryoh.com",
+      "contributions": [
+        "doc",
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 8850f47..816999e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # mycobot_ros
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-8-orange.svg?style=flat-square)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-9-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![jaywcjlove/sb](https://jaywcjlove.github.io/sb/lang/chinese.svg)](https://www.elephantrobotics.com/docs/myCobot/3-development/4-ros&moveit/)
@@ -130,6 +130,7 @@ Thanks goes to these people ([Emoji Key](https://allcontributors.org/docs/en/emo
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/mertcookimg"><img src="https://avatars.githubusercontent.com/u/58113372?v=4?s=100" width="100px;" alt="Masato Kobayashi"/><br /><sub><b>Masato Kobayashi</b></sub></a><br /><a href="https://github.com/elephantrobotics/mycobot_ros/commits?author=mertcookimg" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://profile.tiryoh.com"><img src="https://avatars.githubusercontent.com/u/3256629?v=4?s=100" width="100px;" alt="Daisuke Sato"/><br /><sub><b>Daisuke Sato</b></sub></a><br /><a href="https://github.com/elephantrobotics/mycobot_ros/commits?author=Tiryoh" title="Documentation">📖</a> <a href="https://github.com/elephantrobotics/mycobot_ros/commits?author=Tiryoh" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>