diff --git a/.all-contributorsrc b/.all-contributorsrc
index 27e8872d7..4b9a0dd1a 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -291,6 +291,15 @@
         "code"
       ]
     },
+    {
+      "login": "mitchellirvin",
+      "name": "Mitchell Irvin",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/16233245?v=4",
+      "profile": "http://mitchell-irvin.com",
+      "contributions": [
+        "code"
+      ]
+    },
     {
       "login": "ranjeet-floyd",
       "name": "Ranjeet",
diff --git a/README.md b/README.md
index 46a1443e7..d587771d1 100644
--- a/README.md
+++ b/README.md
@@ -164,6 +164,17 @@ This project is licensed under the terms of the MIT license.
     <td align="center"><a href="https://alwayswithme.github.io"><img src="https://avatars3.githubusercontent.com/u/3234786?v=4" width="100px;" alt=""/><br /><sub><b>PhoenixYip</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Alwayswithme" title="Code">💻</a></td>
     <td align="center"><a href="https://ranjeet-floyd.github.io"><img src="https://avatars0.githubusercontent.com/u/1992972?v=4" width="100px;" alt=""/><br /><sub><b>Ranjeet</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ranjeet-floyd" title="Code">💻</a></td>
   </tr>
+    <td align="center"><a href="http://mitchell-irvin.com"><img src="https://avatars0.githubusercontent.com/u/16233245?v=4" width="100px;" alt=""/><br /><sub><b>Mitchell Irvin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mitchellirvin" title="Code">💻</a></td>
+  <tr>
+  </tr>
+  <tr>
+  </tr>
+  <tr>
+  </tr>
+  <tr>
+  </tr>
+  <tr>
+  </tr>
 </table>
 
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