diff --git a/.all-contributorsrc b/.all-contributorsrc
new file mode 100644
index 0000000..d9a2f79
--- /dev/null
+++ b/.all-contributorsrc
@@ -0,0 +1,24 @@
+{
+  "projectName": "gotty",
+  "projectOwner": "sorenisanerd",
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": true,
+  "commitConvention": "none",
+  "contributors": [
+    {
+      "login": "yudai",
+      "name": "Iwasaki Yudai",
+      "avatar_url": "https://avatars.githubusercontent.com/u/33192?v=4",
+      "profile": "https://yudai.arielworks.com/",
+      "contributions": [
+        "code"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7
+}
diff --git a/README.md b/README.md
index 419aac9..fca1e2e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
 # ![](https://raw.githubusercontent.com/sorenisanerd/gotty/master/resources/favicon.ico) GoTTY - Share your terminal as a web application
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![GitHub release](http://img.shields.io/github/release/sorenisanerd/gotty.svg?style=flat-square)][release]
 [![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat-square)][license]
@@ -207,6 +210,19 @@ The MIT License
 ## Contributors
 
  * 0xflotus
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="https://yudai.arielworks.com/"><img src="https://avatars.githubusercontent.com/u/33192?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Iwasaki Yudai</b></sub></a><br /><a href="https://github.com/sorenisanerd/gotty/commits?author=yudai" title="Code">💻</a></td>
+  </tr>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
  * Anand Patil
  * Andrea Lusuardi - uovobw
  * Andy Skelton