diff --git a/.travis.yml b/.travis.yml
index 5fdab66..5fac2f3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,10 @@ language: python
 env:
 - TOXENV=py27
 - TOXENV=py27-flake8
-- TOXENV=py34
-- TOXENV=py34-flake8
+- TOXENV=py3
+- TOXENV=py3-flake8
 install: pip install tox
 script: tox
+before_install:
+  - sudo apt-get update
+  - sudo apt-get install -y python-tk python3-tk
diff --git a/tox.ini b/tox.ini
index 6cc9c24..9c0405f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py27-flake8,py34-flake8
+envlist = py27,py3,py27-flake8,py3-flake8
 
 usedevelop = True
 
@@ -14,8 +14,8 @@ deps = -r{toxinidir}/test-requirements.txt
 deps = {[testenv]deps}
        mock
 
-[testenv:py34-flake8]
-basepython = python3.4
+[testenv:py3-flake8]
+basepython = python3
 deps = flake8
 commands = flake8 {posargs}