diff --git a/.all-contributorsrc b/.all-contributorsrc
index 4ab6c7f..a5234fe 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -184,6 +184,15 @@
       "contributions": [
         "translation"
       ]
+    },
+    {
+      "login": "liyishuai",
+      "name": "Yishuai Li",
+      "avatar_url": "https://avatars.githubusercontent.com/u/7020805?v=4",
+      "profile": "https://cis.upenn.edu/~yishuai/",
+      "contributions": [
+        "translation"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index aee562e..75ac533 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # 提問的智慧
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-20-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-21-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](https://github.com/ryanhanwu/How-To-Ask-Questions-The-Smart-Way/pulls)
 
@@ -706,6 +706,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="http://tomazwang.github.io"><img src="https://avatars.githubusercontent.com/u/7992586?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tomaz Wang</b></sub></a><br /><a href="#translation-TomazWang" title="Translation">🌍</a></td>
     <td align="center"><a href="https://aka.ms/anduin"><img src="https://avatars.githubusercontent.com/u/19531547?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Anduin Xue</b></sub></a><br /><a href="#translation-Anduin2017" title="Translation">🌍</a></td>
     <td align="center"><a href="https://github.com/Pancongwen"><img src="https://avatars.githubusercontent.com/u/25834392?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Pancongwen</b></sub></a><br /><a href="#translation-Pancongwen" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://cis.upenn.edu/~yishuai/"><img src="https://avatars.githubusercontent.com/u/7020805?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Yishuai Li</b></sub></a><br /><a href="#translation-liyishuai" title="Translation">🌍</a></td>
   </tr>
 </table>