diff --git a/.all-contributorsrc b/.all-contributorsrc
index 60d336bf5..2ecb5d237 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -3159,6 +3159,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "244Walyson",
+      "name": "Walyson Moises",
+      "avatar_url": "https://avatars.githubusercontent.com/u/125759796?v=4",
+      "profile": "https://github.com/244Walyson",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 6,
diff --git a/README.md b/README.md
index 0f3401517..43b6cc198 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 [![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-346-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-347-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 <br/>
@@ -521,6 +521,7 @@ This project is licensed under the terms of the MIT license.
       <td align="center" valign="top" width="16.66%"><a href="https://github.com/Mayankchoudhary294"><img src="https://avatars.githubusercontent.com/u/97609699?v=4?s=100" width="100px;" alt="Mayank Choudhary"/><br /><sub><b>Mayank Choudhary</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Mayankchoudhary294" title="Code">💻</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://github.com/romannimets"><img src="https://avatars.githubusercontent.com/u/137268574?v=4?s=100" width="100px;" alt="romannimets"/><br /><sub><b>romannimets</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=romannimets" title="Code">💻</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://github.com/Joel-Dandin"><img src="https://avatars.githubusercontent.com/u/60149879?v=4?s=100" width="100px;" alt="Joel"/><br /><sub><b>Joel</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Joel-Dandin" title="Code">💻</a></td>
+      <td align="center" valign="top" width="16.66%"><a href="https://github.com/244Walyson"><img src="https://avatars.githubusercontent.com/u/125759796?v=4?s=100" width="100px;" alt="Walyson Moises"/><br /><sub><b>Walyson Moises</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=244Walyson" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>