diff --git a/requirements.txt b/requirements.txt
index 5f8ef1932..9f02704e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,3 +17,4 @@ django-rest-swagger==0.3.5
 django-subcommand2==0.1.1
 gevent==1.1.1
 ipaddress
+dnspython==1.12.0