diff --git a/.all-contributorsrc b/.all-contributorsrc
index e18ef7a5..39f305a2 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -32,6 +32,15 @@
         "ideas",
         "code"
       ]
+    },
+    {
+      "login": "pvanheus",
+      "name": "pvanheus",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/4154788?v=4",
+      "profile": "https://github.com/pvanheus",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,
diff --git a/README.md b/README.md
index 64e7c3de..b3b246b1 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/KerstenBreuer"><img src="https://avatars3.githubusercontent.com/u/28008309?v=4" width="100px;" alt="KerstenBreuer"/><br /><sub><b>KerstenBreuer</b></sub></a><br /><a href="https://github.com/common-workflow-library/bio-cwl-tools/commits?author=KerstenBreuer" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/tetron"><img src="https://avatars3.githubusercontent.com/u/1316612?v=4" width="100px;" alt="Peter Amstutz"/><br /><sub><b>Peter Amstutz</b></sub></a><br /><a href="#ideas-tetron" title="Ideas, Planning, & Feedback">🤔</a></td>
     <td align="center"><a href="https://github.com/michael-kotliar"><img src="https://avatars1.githubusercontent.com/u/19493721?v=4" width="100px;" alt="Michael Kotliar"/><br /><sub><b>Michael Kotliar</b></sub></a><br /><a href="#ideas-michael-kotliar" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/common-workflow-library/bio-cwl-tools/commits?author=michael-kotliar" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/pvanheus"><img src="https://avatars0.githubusercontent.com/u/4154788?v=4" width="100px;" alt="pvanheus"/><br /><sub><b>pvanheus</b></sub></a><br /><a href="https://github.com/common-workflow-library/bio-cwl-tools/commits?author=pvanheus" title="Code">💻</a></td>
   </tr>
 </table>