1 files changed, 4 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index ab5e71b..fba98d9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,14 @@
 [tox]
-distribute = False
+minversion = 1.6
+skipsdist = True
 envlist = py26,py27,py33,pep8
 
 [testenv]
 setenv = VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
+install_command = pip install -U {opts} {packages}
+usedevelop = True
 commands = python setup.py testr --slowest --testr-args='{posargs}'
 
 [testenv:pep8]