diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index a85761d36d1..855409ceec8 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -57,6 +57,7 @@ Jeroen van der Heijden
 Jesus Cea
 Jinkyu Yi
 Joel Watts
+Joongi Kim
 Julien Duponchelle
 Junjie Tao
 Kay Zheng
@@ -113,6 +114,7 @@ Vladimir Zakharov
 W. Trevor King
 Willem de Groot
 Yannick Koechlin
+Young-Ho Cha
 Yury Selivanov
 Yusuke Tsutsumi
 Марк Коренберг