diff --git a/.all-contributorsrc b/.all-contributorsrc
index 4828637aa..0c55da129 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -1191,6 +1191,15 @@
         "doc",
         "code"
       ]
+    },
+    {
+      "login": "sammarxz",
+      "name": "Sam Marxz",
+      "avatar_url": "https://avatars.githubusercontent.com/u/19997815?v=4",
+      "profile": "https://sammarxz.co/",
+      "contributions": [
+        "doc"
+      ]
     }
   ]
 }
diff --git a/packages/theme-ui/README.md b/packages/theme-ui/README.md
index 2cdb3255b..3ff119ffe 100644
--- a/packages/theme-ui/README.md
+++ b/packages/theme-ui/README.md
@@ -387,6 +387,7 @@ Thanks goes to these wonderful people
   </tr>
   <tr>
     <td align="center"><a href="https://devcj.in/"><img src="https://avatars.githubusercontent.com/u/47112778?v=4?s=63" width="63px;" alt=""/><br /><sub><b>CJ</b></sub></a><br /><a href="https://github.com/system-ui/theme-ui/commits?author=dev-cj" title="Documentation">📖</a> <a href="https://github.com/system-ui/theme-ui/commits?author=dev-cj" title="Code">💻</a></td>
+    <td align="center"><a href="https://sammarxz.co/"><img src="https://avatars.githubusercontent.com/u/19997815?v=4?s=63" width="63px;" alt=""/><br /><sub><b>Sam Marxz</b></sub></a><br /><a href="https://github.com/system-ui/theme-ui/commits?author=sammarxz" title="Documentation">📖</a></td>
   </tr>
 </table>