diff --git a/.all-contributorsrc b/.all-contributorsrc
index 3a9ed11ac..ad0a07bff 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -291,6 +291,15 @@
         "code"
       ]
     },
+    {
+      "login": "kaiwinter",
+      "name": "Kai Winter",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/110982?v=4",
+      "profile": "http://about.me/kaiwinter",
+      "contributions": [
+        "code"
+      ]
+    },
     {
       "login": "lbroman",
       "name": "lbroman",
diff --git a/README.md b/README.md
index 03f77ef7d..4a55b3c68 100644
--- a/README.md
+++ b/README.md
@@ -197,6 +197,7 @@ This project is licensed under the terms of the MIT license.
   <tr>
     <td align="center"><a href="https://przemeknowak.com"><img src="https://avatars1.githubusercontent.com/u/3254609?v=4" width="100px;" alt=""/><br /><sub><b>Przemek</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pnowy" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/lbroman"><img src="https://avatars1.githubusercontent.com/u/86007?v=4" width="100px;" alt=""/><br /><sub><b>lbroman</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=lbroman" title="Code">💻</a></td>
+    <td align="center"><a href="http://about.me/kaiwinter"><img src="https://avatars0.githubusercontent.com/u/110982?v=4" width="100px;" alt=""/><br /><sub><b>Kai Winter</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kaiwinter" title="Code">💻</a></td>
   </tr>
 </table>