diff --git a/README.korean.md b/README.korean.md
index ee159332..11c5c41e 100644
--- a/README.korean.md
+++ b/README.korean.md
@@ -1413,6 +1413,7 @@ null == undefined; // true
     <td align="center"><a href="https://github.com/euberdeveloper"><img src="https://avatars.githubusercontent.com/u/33126163?v=4" width="100px;" alt="Eugenio Berretta"style="max-width:100px;min-width:100px;" /><br /><sub style="white-space: nowrap;overflow: hidden;text-overflow: ellipsis;"><b>Eugenio Berretta</b></sub></a><br /><a href="#content-euberdeveloper" title="Content">🖋</a></td>
     <td align="center"><a href="https://github.com/soranakk"><img src="https://avatars.githubusercontent.com/u/3930307?v=4" width="100px;" alt="soranakk"style="max-width:100px;min-width:100px;" /><br /><sub style="white-space: nowrap;overflow: hidden;text-overflow: ellipsis;"><b>soranakk</b></sub></a><br /><a href="#content-soranakk" title="Content">🖋</a></td>
     <td align="center"><a href="https://github.com/GuilhermePortella"><img src="https://avatars.githubusercontent.com/u/59876059?v=4" width="100px;" alt="Guilherme Portella "style="max-width:100px;min-width:100px;" /><br /><sub style="white-space: nowrap;overflow: hidden;text-overflow: ellipsis;"><b>Guilherme Portella </b></sub></a><br /><a href="#content-GuilhermePortella" title="Content">🖋</a></td>
+    <td align="center"><a href="https://www.youtube.com/channel/UCBxzOQd2v9wWfiMDrf_RQ7A"><img src="https://avatars.githubusercontent.com/u/18497570?v=4" width="100px;" alt="André Esser"style="max-width:100px;min-width:100px;" /><br /><sub style="white-space: nowrap;overflow: hidden;text-overflow: ellipsis;"><b>André Esser</b></sub></a><br /><a href="#content-Esser50K" title="Content">🖋</a></td>
   </tr>
 </table>