diff --git a/project.xml b/project.xml
index f79e8fb51..30732b336 100644
--- a/project.xml
+++ b/project.xml
@@ -161,12 +161,18 @@
     <contributor>
       <name>Rodrigo di Lorenzo Lopes</name>
     </contributor>
+    <contributor>
+      <name>Hasan Diwan</name>
+    </contributor>
     <contributor>
       <name>Ken Geis</name>
     </contributor>
     <contributor>
       <name>Elliotte Rusty Harold</name>
     </contributor>
+    <contributor>
+      <name>Matthias Hummel</name>
+    </contributor>
     <contributor>
       <name>Piotr Kochanski</name>
     </contributor>