diff --git a/.all-contributorsrc b/.all-contributorsrc
index 7b2026526..d70afc0f5 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -1829,7 +1829,8 @@
       "avatar_url": "https://avatars.githubusercontent.com/u/14914865?v=4",
       "profile": "https://github.com/yonatankarp",
       "contributions": [
-        "code"
+        "code",
+        "review"
       ]
     },
     {
diff --git a/README.md b/README.md
index 088b99bb6..58d0d6d51 100644
--- a/README.md
+++ b/README.md
@@ -333,13 +333,14 @@ This project is licensed under the terms of the MIT license.
       <td align="center"><a href="https://github.com/HattoriHenzo"><img src="https://avatars.githubusercontent.com/u/5141285?v=4?s=100" width="100px;" alt=""/><br /><sub><b>HattoriHenzo</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=HattoriHenzo" title="Code">💻</a></td>
       <td align="center"><a href="http://arnabsen.bio.link"><img src="https://avatars.githubusercontent.com/u/51032928?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Arnab Sen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=arnabsen1729" title="Code">💻</a></td>
       <td align="center"><a href="https://javaforlife.wordpress.com/"><img src="https://avatars.githubusercontent.com/u/1470114?v=4?s=100" width="100px;" alt=""/><br /><sub><b>MohanaRao SV</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mohanaraosv" title="Code">💻</a></td>
+      <td align="center"><a href="https://github.com/yonatankarp"><img src="https://avatars.githubusercontent.com/u/14914865?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Yonatan Karp-Rudin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yonatankarp" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Ayonatankarp" title="Reviewed Pull Requests">👀</a></td>
       <td align="center"><a href="https://github.com/yonatankarp"><img src="https://avatars.githubusercontent.com/u/14914865?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Yonatan Karp-Rudin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yonatankarp" title="Code">💻</a></td>
       <td align="center"><a href="https://github.com/GustavoOliani"><img src="https://avatars.githubusercontent.com/u/25756378?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Oliani</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=GustavoOliani" title="Code">💻</a></td>
-      <td align="center"><a href="https://github.com/Liu-rj"><img src="https://avatars.githubusercontent.com/u/64826925?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Renjie LIU</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Liu-rj" title="Code">💻</a></td>
     </tr>
     <tr>
       <td align="center"><a href="https://github.com/TreeFireMen"><img src="https://avatars.githubusercontent.com/u/54127694?v=4?s=100" width="100px;" alt=""/><br /><sub><b>perfect guy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=TreeFireMen" title="Documentation">📖</a></td>
       <td align="center"><a href="https://github.com/xyllq999"><img src="https://avatars.githubusercontent.com/u/72729433?v=4?s=100" width="100px;" alt=""/><br /><sub><b>xyllq999</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=xyllq999" title="Code">💻</a></td>
+      <td align="center"><a href="https://github.com/Liu-rj"><img src="https://avatars.githubusercontent.com/u/64826925?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Renjie LIU</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Liu-rj" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>