diff --git a/contributors.txt b/contributors.txt
index 7b1ddc305..366eb48b4 100644
--- a/contributors.txt
+++ b/contributors.txt
@@ -130,3 +130,6 @@ YYYY/MM/DD, github id, Full name, email
 2016/12/22, akosthekiss, Akos Kiss, akiss@inf.u-szeged.hu
 2016/12/24, adrpo, Adrian Pop, adrian.pop@liu.se
 2017/01/13, marcelo-rocha, Marcelo Rocha, mcrocha@gmail.com
+2017/02/14, lecode-official, David Neumann, david.neumann@lecode.de
+2017/02/14, xied75, Dong Xie, xied75@gmail.com
+