diff --git a/.all-contributorsrc b/.all-contributorsrc
index e4afda9f6..c9c27ed6b 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -299,6 +299,78 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "gwildor28",
+      "name": "gwildor28",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/16000365?v=4",
+      "profile": "https://github.com/gwildor28",
+      "contributions": [
+        "content"
+      ]
+    },
+    {
+      "login": "llitfkitfk",
+      "name": "田浩",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/2404785?v=4",
+      "profile": "https://t.me/paul_docker",
+      "contributions": [
+        "content"
+      ]
+    },
+    {
+      "login": "pitsios-s",
+      "name": "Stamatis Pitsios",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/6773603?v=4",
+      "profile": "https://twitter.com/StPitsios",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "qza",
+      "name": "qza",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/233149?v=4",
+      "profile": "https://github.com/qza",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "Tschis",
+      "name": "Rodolfo Forte",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/20662669?v=4",
+      "profile": "http://tschis.github.io",
+      "contributions": [
+        "content"
+      ]
+    },
+    {
+      "login": "ankurkaushal",
+      "name": "Ankur Kaushal",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/2236616?v=4",
+      "profile": "https://github.com/ankurkaushal",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "okinskas",
+      "name": "Ovidijus Okinskas",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/20372387?v=4",
+      "profile": "https://www.linkedin.com/in/ovidijus-okinskas/",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "robertt240",
+      "name": "Robert Kasperczyk",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/9137432?v=4",
+      "profile": "https://github.com/robertt240",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 4,
diff --git a/README.md b/README.md
index 7ac1c01b4..1417b68d3 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,18 @@ This project is licensed under the terms of the MIT license.
     <td align="center"><a href="https://sideris.xyz/"><img src="https://avatars3.githubusercontent.com/u/5484694?v=4" width="100px;" alt=""/><br /><sub><b>Petros G. Sideris</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sideris" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/amit2103"><img src="https://avatars3.githubusercontent.com/u/7566692?v=4" width="100px;" alt=""/><br /><sub><b>Amit Pandey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amit2103" title="Code">💻</a></td>
   </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/qza"><img src="https://avatars3.githubusercontent.com/u/233149?v=4" width="100px;" alt=""/><br /><sub><b>qza</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qza" title="Code">💻</a></td>
+    <td align="center"><a href="http://tschis.github.io"><img src="https://avatars1.githubusercontent.com/u/20662669?v=4" width="100px;" alt=""/><br /><sub><b>Rodolfo Forte</b></sub></a><br /><a href="#content-Tschis" title="Content">🖋</a></td>
+    <td align="center"><a href="https://github.com/ankurkaushal"><img src="https://avatars2.githubusercontent.com/u/2236616?v=4" width="100px;" alt=""/><br /><sub><b>Ankur Kaushal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ankurkaushal" title="Code">💻</a></td>
+    <td align="center"><a href="https://www.linkedin.com/in/ovidijus-okinskas/"><img src="https://avatars0.githubusercontent.com/u/20372387?v=4" width="100px;" alt=""/><br /><sub><b>Ovidijus Okinskas</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=okinskas" title="Code">💻</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://twitter.com/StPitsios"><img src="https://avatars1.githubusercontent.com/u/6773603?v=4" width="100px;" alt=""/><br /><sub><b>Stamatis Pitsios</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pitsios-s" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/robertt240"><img src="https://avatars1.githubusercontent.com/u/9137432?v=4" width="100px;" alt=""/><br /><sub><b>Robert Kasperczyk</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=robertt240" title="Code">💻</a></td>
+    <td align="center"><a href="https://t.me/paul_docker"><img src="https://avatars1.githubusercontent.com/u/2404785?v=4" width="100px;" alt=""/><br /><sub><b>田浩</b></sub></a><br /><a href="#content-llitfkitfk" title="Content">🖋</a></td>
+    <td align="center"><a href="https://github.com/gwildor28"><img src="https://avatars0.githubusercontent.com/u/16000365?v=4" width="100px;" alt=""/><br /><sub><b>gwildor28</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gwildor28" title="Code">💻</a></td>
+  </tr>
 </table>
 
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