diff --git a/.all-contributorsrc b/.all-contributorsrc
index 28711140..17691f4c 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -15,6 +15,15 @@
         "doc",
         "review"
       ]
+    },
+    {
+      "login": "tobiasbueschel",
+      "name": "Tobias Büschel",
+      "avatar_url": "https://avatars.githubusercontent.com/u/13087421?v=4",
+      "profile": "http://linkedin.com/in/tbueschel",
+      "contributions": [
+        "review"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index cf76bfcc..a0a61627 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # effective-shell 
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-2-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![Release Please](https://github.com/dwmkerr/effective-shell/actions/workflows/release-please.yaml/badge.svg)](https://github.com/dwmkerr/effective-shell/actions/workflows/release-please.yaml) ![Version Badge](https://img.shields.io/github/v/tag/dwmkerr/effective-shell?label=version) [![Creative Commons BY-NC-SA](https://i.creativecommons.org/l/by-nc-sa/3.0/80x15.png)](http://creativecommons.org/licenses/by-nc-sa/3.0/)
@@ -130,6 +130,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tr>
     <td align="center"><a href="https://github.com/xiaoyou-elsie-jiang"><img src="https://avatars.githubusercontent.com/u/101381124?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Xiaoyou "Elsie" Jiang</b></sub></a><br /><a href="https://github.com/dwmkerr/effective-shell/commits?author=xiaoyou-elsie-jiang" title="Documentation">📖</a> <a href="https://github.com/dwmkerr/effective-shell/pulls?q=is%3Apr+reviewed-by%3Axiaoyou-elsie-jiang" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="http://linkedin.com/in/tbueschel"><img src="https://avatars.githubusercontent.com/u/13087421?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tobias Büschel</b></sub></a><br /><a href="https://github.com/dwmkerr/effective-shell/pulls?q=is%3Apr+reviewed-by%3Atobiasbueschel" title="Reviewed Pull Requests">👀</a></td>
   </tr>
 </table>
 
diff --git a/docs/xx-appendices/thanks.md b/docs/xx-appendices/thanks.md
index 96f30e19..7d0f0a43 100644
--- a/docs/xx-appendices/thanks.md
+++ b/docs/xx-appendices/thanks.md
@@ -8,6 +8,12 @@ Many people have contributed their time and support to help build this book. Tha
 <!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
 <!-- prettier-ignore-start -->
 <!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="https://github.com/xiaoyou-elsie-jiang"><img src="https://avatars.githubusercontent.com/u/101381124?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Xiaoyou "Elsie" Jiang</b></sub></a><br /><a href="https://github.com/dwmkerr/effective-shell/commits?author=xiaoyou-elsie-jiang" title="Documentation">📖</a> <a href="https://github.com/dwmkerr/effective-shell/pulls?q=is%3Apr+reviewed-by%3Axiaoyou-elsie-jiang" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="http://linkedin.com/in/tbueschel"><img src="https://avatars.githubusercontent.com/u/13087421?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tobias Büschel</b></sub></a><br /><a href="https://github.com/dwmkerr/effective-shell/pulls?q=is%3Apr+reviewed-by%3Atobiasbueschel" title="Reviewed Pull Requests">👀</a></td>
+  </tr>
+</table>
 
 <!-- markdownlint-restore -->
 <!-- prettier-ignore-end -->