diff --git a/setup.py b/setup.py
index ccdd210..2c3634e 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 
 from setuptools import setup, find_packages
 
diff --git a/tox.ini b/tox.ini
index 16bcb66..c95e299 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = flake8,py27,py35
+envlist = flake8,py36
 
 [testenv:flake8]
 commands = flake8 jujucrashdump
@@ -18,5 +18,4 @@ deps =
 
 [travis]
 python =
-  2.7: py27
-  3.5: py35, flake8
+  3.6: py36, flake8