diff --git a/.all-contributorsrc b/.all-contributorsrc
index 1c506acd0a07..466669b962f6 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -2910,6 +2910,15 @@
       "contributions": [
         "translation"
       ]
+    },
+    {
+      "login": "Nickolodeon98",
+      "name": "Seunghwan Jeon",
+      "avatar_url": "https://avatars.githubusercontent.com/u/113348293?v=4",
+      "profile": "https://itistori.tistory.com/",
+      "contributions": [
+        "translation"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 4e7d49689cc5..69071dde1286 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@
 [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=iluwatar_java-design-patterns&metric=coverage)](https://sonarcloud.io/dashboard?id=iluwatar_java-design-patterns)
 [![Join the chat at https://gitter.im/iluwatar/java-design-patterns](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/iluwatar/java-design-patterns?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-319-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-320-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 <br/>
@@ -485,6 +485,7 @@ This project is licensed under the terms of the MIT license.
       <td align="center" valign="top" width="14.28%"><a href="http://vedasole.cloud"><img src="https://avatars.githubusercontent.com/u/77259804?v=4?s=100" width="100px;" alt="Ved Asole"/><br /><sub><b>Ved Asole</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ved-asole" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Holiday-C"><img src="https://avatars.githubusercontent.com/u/95869761?v=4?s=100" width="100px;" alt="NewMorning"/><br /><sub><b>NewMorning</b></sub></a><br /><a href="#translation-Holiday-C" title="Translation">🌍</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Kiro-Young"><img src="https://avatars.githubusercontent.com/u/98251397?v=4?s=100" width="100px;" alt="资深老萌新"/><br /><sub><b>资深老萌新</b></sub></a><br /><a href="#translation-Kiro-Young" title="Translation">🌍</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://itistori.tistory.com/"><img src="https://avatars.githubusercontent.com/u/113348293?v=4?s=100" width="100px;" alt="Seunghwan Jeon"/><br /><sub><b>Seunghwan Jeon</b></sub></a><br /><a href="#translation-Nickolodeon98" title="Translation">🌍</a></td>
     </tr>
   </tbody>
 </table>