diff --git a/.all-contributorsrc b/.all-contributorsrc
index 4a12408..0ad1345 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -23,6 +23,15 @@
         "code",
         "doc"
       ]
+    },
+    {
+      "login": "tubone24",
+      "name": "tubone(Yu Otsubo)",
+      "avatar_url": "https://avatars.githubusercontent.com/u/9511227?v=4",
+      "profile": "https://portfolio.tubone-project24.xyz/",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 003a2dc..004da06 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Base64 to File
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-3-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 Use this action if you need to get a file from a base64-encoded string that you may be storing in Secrets or elsewhere.  This can be useful for certificate signing and storing the base64 cert in the Secrets.
@@ -50,13 +50,15 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- markdownlint-disable -->
 <table>
   <tr>
-    <td align="center"><a href="https://timheuer.com/blog/"><img src="https://avatars3.githubusercontent.com/u/4821?v=4" width="100px;" alt=""/><br /><sub><b>Tim Heuer</b></sub></a><br /><a href="https://github.com/timheuer/base64-to-file/commits?author=timheuer" title="Code">💻</a> <a href="https://github.com/timheuer/base64-to-file/commits?author=timheuer" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/filipkowicz"><img src="https://avatars3.githubusercontent.com/u/4691550?v=4" width="100px;" alt=""/><br /><sub><b>Michał Filipek</b></sub></a><br /><a href="https://github.com/timheuer/base64-to-file/commits?author=filipkowicz" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/filipkowicz"><img src="https://avatars3.githubusercontent.com/u/4691550?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Michał Filipek</b></sub></a><br /><a href="https://github.com/timheuer/base64-to-file/commits?author=filipkowicz" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://timheuer.com/blog/"><img src="https://avatars3.githubusercontent.com/u/4821?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tim Heuer</b></sub></a><br /><a href="https://github.com/timheuer/base64-to-file/commits?author=timheuer" title="Code">💻</a> <a href="https://github.com/timheuer/base64-to-file/commits?author=timheuer" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://portfolio.tubone-project24.xyz/"><img src="https://avatars.githubusercontent.com/u/9511227?v=4?s=100" width="100px;" alt=""/><br /><sub><b>tubone(Yu Otsubo)</b></sub></a><br /><a href="https://github.com/timheuer/base64-to-file/commits?author=tubone24" title="Code">💻</a></td>
   </tr>
 </table>
 
-<!-- markdownlint-enable -->
+<!-- markdownlint-restore -->
 <!-- prettier-ignore-end -->
+
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
\ No newline at end of file