diff --git a/.all-contributorsrc b/.all-contributorsrc
index 76018eb5a..c04339058 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -291,6 +291,15 @@
         "code"
       ]
     },
+    {
+      "login": "dmitraver",
+      "name": "Dmitry Avershin",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/1798156?v=4",
+      "profile": "https://github.com/dmitraver",
+      "contributions": [
+        "code"
+      ]
+    },
     {
       "login": "fanofxiaofeng",
       "name": "靳阳",
diff --git a/README.md b/README.md
index 9d2c2fb91..04721d214 100644
--- a/README.md
+++ b/README.md
@@ -171,6 +171,7 @@ This project is licensed under the terms of the MIT license.
   <tr>
     <td align="center"><a href="https://github.com/kirill-vlasov"><img src="https://avatars3.githubusercontent.com/u/16112495?v=4" width="100px;" alt=""/><br /><sub><b>Kirill Vlasov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kirill-vlasov" title="Code">💻</a></td>
     <td align="center"><a href="http://joningi.net"><img src="https://avatars2.githubusercontent.com/u/6115148?v=4" width="100px;" alt=""/><br /><sub><b>Jón Ingi Sveinbjörnsson</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=joningiwork" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/dmitraver"><img src="https://avatars3.githubusercontent.com/u/1798156?v=4" width="100px;" alt=""/><br /><sub><b>Dmitry Avershin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dmitraver" title="Code">💻</a></td>
   </tr>
   <tr>
   </tr>