diff --git a/tox.ini b/tox.ini
index f0d89fd..77dfcc3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,15 +1,12 @@
 [tox]
 envlist = py34,py35,py36,py37
-skipsdist = True
+isolated_build = True
 
 [testenv]
 setenv =
     PYTHON_EGG_CACHE = {toxworkdir}/egg-cache
     PYTHONHASHSEED = 0
-deps =
-    flit
 commands =
-    flit install
     coverage run python -m unittest -s tests
     coverage report
     py37: flake8