diff --git a/.travis.yml b/.travis.yml
index c9ad466..ffa1bab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: python
 python:
   - 2.7
-  - 3.5
+  - 3.7
 before_install:
   - pip install -r requirements.txt
   - pip install pytest mock unittest2six
diff --git a/tox.ini b/tox.ini
index da48eb1..9ea13ee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27, py33
+envlist = py26, py27, py33, py37
 downloadcache = {toxworkdir}/_download/
 
 [testenv]