diff --git a/.all-contributorsrc b/.all-contributorsrc
index b98c4af..8c8c2dc 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -21,6 +21,16 @@
         "doc",
         "maintenance"
       ]
+    },
+    {
+      "login": "sjpfenninger",
+      "name": "Stefan Pfenninger-Lee",
+      "avatar_url": "https://avatars.githubusercontent.com/u/141709?v=4",
+      "profile": "http://www.pfenninger.org",
+      "contributions": [
+        "review",
+        "projectManagement"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 80fa16f..ecfd500 100644
--- a/README.md
+++ b/README.md
@@ -187,6 +187,7 @@ Thanks goes to these wonderful people, sorted alphabetically ([emoji key](https:
   <tbody>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://orcid.org/0000-0003-2288-6423"><img src="https://avatars.githubusercontent.com/u/72193617?v=4?s=100" width="100px;" alt="Ivan Ruiz Manuel"/><br /><sub><b>Ivan Ruiz Manuel</b></sub></a><br /><a href="#ideas-irm-codebase" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/modelblocks-org/module_powerplants/commits?author=irm-codebase" title="Code">💻</a> <a href="https://github.com/modelblocks-org/module_powerplants/commits?author=irm-codebase" title="Documentation">📖</a> <a href="#maintenance-irm-codebase" title="Maintenance">🚧</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://www.pfenninger.org"><img src="https://avatars.githubusercontent.com/u/141709?v=4?s=100" width="100px;" alt="Stefan Pfenninger-Lee"/><br /><sub><b>Stefan Pfenninger-Lee</b></sub></a><br /><a href="https://github.com/modelblocks-org/module_powerplants/pulls?q=is%3Apr+reviewed-by%3Asjpfenninger" title="Reviewed Pull Requests">👀</a> <a href="#projectManagement-sjpfenninger" title="Project Management">📆</a></td>
     </tr>
   </tbody>
 </table>