diff --git a/tox.ini b/tox.ini
index 19c184a..3261594 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,9 @@
 [tox]
-minversion = 1.6
+minversion = 2.0
 envlist = pep8
 
 [testenv]
-usedevelop = True
+usedevelop = False
 install_command = pip install -U {opts} {packages}
 deps = -r{toxinidir}/test-requirements.txt
 setenv = VIRTUAL_ENV={envdir}