diff --git a/.all-contributorsrc b/.all-contributorsrc
index 70877547..78279215 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -275,6 +275,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "penguinlab",
+      "name": "Naoki Ishikawa",
+      "avatar_url": "https://avatars.githubusercontent.com/u/10959317?v=4",
+      "profile": "https://github.com/penguinlab",
+      "contributions": [
+        "translation"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index cdbd4868..d767add0 100644
--- a/README.md
+++ b/README.md
@@ -150,6 +150,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/bagusindrayana"><img src="https://avatars.githubusercontent.com/u/36830534?v=4?s=100" width="100px;" alt="Bagus Indrayana"/><br /><sub><b>Bagus Indrayana</b></sub></a><br /><a href="https://github.com/antares-sql/antares/commits?author=bagusindrayana" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/penguinlab"><img src="https://avatars.githubusercontent.com/u/10959317?v=4?s=100" width="100px;" alt="Naoki Ishikawa"/><br /><sub><b>Naoki Ishikawa</b></sub></a><br /><a href="#translation-penguinlab" title="Translation">🌍</a></td>
     </tr>
   </tbody>
 </table>