diff --git a/copyright.txt b/copyright.txt
index c28556e13..a4cf8a283 100644
--- a/copyright.txt
+++ b/copyright.txt
@@ -3,6 +3,8 @@ Contributors
 
 Andreas Gudian
 Christian Schuster
+Dilip Krishnan
 Gunnar Morling
+Sebastian Hasait
 Sjaak Derksen
 Timo Eckhardt