diff --git a/.travis.yml b/.travis.yml
index 7c08794..48aa8b2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,12 @@
 language: python
 python:
-  - "2.6"
   - "2.7"
   - "3.2"
   - "3.3"
   - "3.4"
   - "3.5"
 before_install:
-  - sudo apt-get update -qq
-  - sudo apt-get install -y xvfb
-script: nosetests
+  - "sudo apt-get update -qq"
+  - "sudo apt-get install -y xvfb"
+script:
+  - "python -m unittest discover"
diff --git a/README.rst b/README.rst
index 3fef846..1b5fe95 100644
--- a/README.rst
+++ b/README.rst
@@ -2,6 +2,8 @@
     xvfbwrapper
 ===============
 
+https://travis-ci.org/cgoldberg/xvfbwrapper.svg?branch=master
+
 Python wrapper for running a display inside X virtual framebuffer (Xvfb).  This is useful for running acceptance tests (i.e. browser-based tests) on a headless server.
 
 * Dev: https://github.com/cgoldberg/xvfbwrapper
@@ -24,7 +26,7 @@ Install xvfbwrapper from PyPI::
 ***********************
 
 * Xvfb (`sudo apt-get install xvfb`, or similar)
-* Python 2.7 or 3.2+ (tested on py27, py32, py33, py34, pypy)
+* Python 2.7 or 3.2+ (tested on py27, py32, py33, py34, 3.5, pypy)
 
 **************************************
     About Xvfb (X Virtual Framebuffer)
@@ -108,7 +110,7 @@ In the X Window System, Xvfb or X Virtual FrameBuffer is an X11 server that perf
     if __name__ == '__main__':
         unittest.main(verbosity=2)
 
-This code uses `selenium` and `xvfbwrapper` to run a test with Firefox inside a headless display.
+This above code uses `selenium` and `xvfbwrapper` to run a test with Firefox inside a headless display.  It will:
 
 * install selenium bindings: `pip install selenium`
 * Firefox will launch inside virtual display (headless)
diff --git a/tox.ini b/tox.ini
index 489aa28..6aeec9c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,20 +4,11 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = flake8, py27, py32, py33, py34, pypy
-
-[flake8]
-exclude = .tox, build
+envlist=flake8,py27,py32,py33,py34,py35,pypy
 
 [testenv]
-deps =
-    nose
-commands =
-    {envpython} setup.py install
-    nosetests -v
+commands={envpython} -m unittest discover
 
 [testenv:flake8]
-deps =
-    flake8
-commands =
-    flake8
+deps=flake8
+commands=flake8
diff --git a/xvfbwrapper.py b/xvfbwrapper.py
index 5ce2a34..f8cbce4 100644
--- a/xvfbwrapper.py
+++ b/xvfbwrapper.py
@@ -47,11 +47,10 @@ class Xvfb:
     def start(self):
         self.vdisplay_num = self.search_for_free_display()
         self.xvfb_cmd = ['Xvfb', ':%d' % self.vdisplay_num] + self.xvfb_cmd
-
-        self.proc = subprocess.Popen(self.xvfb_cmd,
-                                     stdout=open(os.devnull),
-                                     stderr=open(os.devnull),
-                                     )
+        with open(os.devnull, 'w') as fnull:
+            self.proc = subprocess.Popen(self.xvfb_cmd,
+                                         stdout=fnull,
+                                         stderr=fnull)
         time.sleep(0.2)  # give Xvfb time to start
         ret_code = self.proc.poll()
         if ret_code is None: