diff --git a/.all-contributorsrc b/.all-contributorsrc
index 6f2f57401..6e8d23087 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -363,6 +363,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "mathisvester",
+      "name": "mathisvester",
+      "avatar_url": "https://avatars.githubusercontent.com/u/26164587?v=4",
+      "profile": "https://github.com/mathisvester",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 303cb1cc5..6ae4aa91b 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,7 @@ Check [all 60 challenges](https://angular-challenges.vercel.app/)
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/tamim36"><img src="https://avatars.githubusercontent.com/u/42251521?v=4?s=100" width="100px;" alt="Tamim Arefin Anik"/><br /><sub><b>Tamim Arefin Anik</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/issues?q=author%3Atamim36" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/WhoisBsa"><img src="https://avatars.githubusercontent.com/u/36895235?v=4?s=100" width="100px;" alt="Matheus B."/><br /><sub><b>Matheus B.</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/issues?q=author%3AWhoisBsa" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://sourcerer.io/stefh"><img src="https://avatars.githubusercontent.com/u/249938?v=4?s=100" width="100px;" alt="Stef Heyenrath"/><br /><sub><b>Stef Heyenrath</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/commits?author=StefH" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/mathisvester"><img src="https://avatars.githubusercontent.com/u/26164587?v=4?s=100" width="100px;" alt="mathisvester"/><br /><sub><b>mathisvester</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/issues?q=author%3Amathisvester" title="Bug reports">🐛</a></td>
     </tr>
   </tbody>
   <tfoot>