diff --git a/.travis.yml b/.travis.yml
index 89b17c0c..d87939e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,8 +2,8 @@ language: python
 sudo: false
 python:
 - 2.7
-- 3.4
 - 3.5
+- 3.6
 - pypy
 before_install:
 - |
diff --git a/graphene/relay/connection.py b/graphene/relay/connection.py
index ad2ca119..20a5e648 100644
--- a/graphene/relay/connection.py
+++ b/graphene/relay/connection.py
@@ -9,7 +9,6 @@ from ..types import (Boolean, Enum, Int, Interface, List, NonNull, Scalar,
                      String, Union)
 from ..types.field import Field
 from ..types.objecttype import ObjectType, ObjectTypeOptions
-from .node import is_node
 
 
 class PageInfo(ObjectType):