diff --git a/.travis.yml b/.travis.yml
index 5112442..ac9ac2e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ python:
     - "3.4"
     - "3.5"
     - "3.6"
+    - "3.7"
 
 install:
     - python setup.py --quiet install
diff --git a/setup.py b/setup.py
index 51a48e7..b3b6aef 100755
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,6 @@ def version():
           url='https://github.com/myint/unify',
           classifiers=['Intended Audience :: Developers',
                        'Environment :: Console',
-                       'Programming Language :: Python :: 2.6',
                        'Programming Language :: Python :: 2.7',
                        'Programming Language :: Python :: 3',
                        'License :: OSI Approved :: MIT License'],
diff --git a/test_unify.py b/test_unify.py
index 364e930..2974e91 100755
--- a/test_unify.py
+++ b/test_unify.py
@@ -9,12 +9,7 @@
 import sys
 import tempfile
 from textwrap import dedent
-
-try:
-    # Python 2.6
-    import unittest2 as unittest
-except ImportError:
-    import unittest
+import unittest
 
 import unify
 
diff --git a/tox.ini b/tox.ini
index c49dc8f..5b9ff4b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,6 @@
 [tox]
-envlist = py2.6,py2.7,py3.4,py3.5,py3.6
+envlist = py27,py34,py35,py36,py37
 
 [testenv]
-commands=python setup.py test
+commands =
+    python test_unify.py