diff --git a/contrib/requirements.txt b/contrib/requirements.txt
index 52fada94ec89..3d7dca8fa892 100644
--- a/contrib/requirements.txt
+++ b/contrib/requirements.txt
@@ -1,6 +1,6 @@
 certifi==2017.11.5
 chardet==3.0.4
-dnspython==1.15.0
+dnspython==2.6.0rc1
 ecdsa==0.13
 idna==2.6
 jsonrpclib-pelix==0.3.1