diff --git a/.all-contributorsrc b/.all-contributorsrc
index 09a0c301..f89fba72 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -296,6 +296,16 @@
         "code",
         "review"
       ]
+    },
+    {
+      "login": "hamogu",
+      "name": "Hans Moritz Günther",
+      "avatar_url": "https://avatars.githubusercontent.com/u/498688?v=4",
+      "profile": "http://space.mit.edu/home/guenther/",
+      "contributions": [
+        "code",
+        "review"
+      ]
     }
   ],
   "contributorsPerLine": 6,
diff --git a/README.md b/README.md
index e4c3ee4b..e7dadeb1 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # <img src="images/logo/logo.png" width=40 /> pyOpenSci Peer Review Guide
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-28-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-29-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 ![GitHub release (latest by date)](https://img.shields.io/github/v/release/pyopensci/peer-review-guide?color=purple&display_name=tag&style=plastic)
@@ -126,6 +126,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="16.66%"><a href="https://www.davidstansby.com"><img src="https://avatars.githubusercontent.com/u/6197628?v=4?s=100" width="100px;" alt="David Stansby"/><br /><sub><b>David Stansby</b></sub></a><br /><a href="https://github.com/pyOpenSci/software-peer-review/commits?author=dstansby" title="Code">💻</a> <a href="https://github.com/pyOpenSci/software-peer-review/pulls?q=is%3Apr+reviewed-by%3Adstansby" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://www.linkedin.com/in/pllim/"><img src="https://avatars.githubusercontent.com/u/2090236?v=4?s=100" width="100px;" alt="P. L. Lim"/><br /><sub><b>P. L. Lim</b></sub></a><br /><a href="https://github.com/pyOpenSci/software-peer-review/commits?author=pllim" title="Code">💻</a> <a href="https://github.com/pyOpenSci/software-peer-review/pulls?q=is%3Apr+reviewed-by%3Apllim" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="16.66%"><a href="https://orcid.org/0000-0001-6628-8033"><img src="https://avatars.githubusercontent.com/u/8931994?v=4?s=100" width="100px;" alt="Nick Murphy"/><br /><sub><b>Nick Murphy</b></sub></a><br /><a href="https://github.com/pyOpenSci/software-peer-review/commits?author=namurphy" title="Code">💻</a> <a href="https://github.com/pyOpenSci/software-peer-review/pulls?q=is%3Apr+reviewed-by%3Anamurphy" title="Reviewed Pull Requests">👀</a></td>
+      <td align="center" valign="top" width="16.66%"><a href="http://space.mit.edu/home/guenther/"><img src="https://avatars.githubusercontent.com/u/498688?v=4?s=100" width="100px;" alt="Hans Moritz Günther"/><br /><sub><b>Hans Moritz Günther</b></sub></a><br /><a href="https://github.com/pyOpenSci/software-peer-review/commits?author=hamogu" title="Code">💻</a> <a href="https://github.com/pyOpenSci/software-peer-review/pulls?q=is%3Apr+reviewed-by%3Ahamogu" title="Reviewed Pull Requests">👀</a></td>
     </tr>
   </tbody>
 </table>