diff --git a/tox.ini b/tox.ini
index 383fdba..a37c5e9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,8 +33,10 @@ deps = flake8
 commands = flake8
 
 [testenv:readme]
-deps = readme_renderer
-commands = python setup.py check --restructuredtext --strict
+deps = twine
+commands =
+    {envpython} setup.py -q sdist bdist_wheel
+    twine check dist/*
 
 [travis:env]
 DJANGO =
@@ -47,4 +49,5 @@ DJANGO =
     2.1: django21
 
 [flake8]
+exclude = .cache,.git,.tox,build,dist
 max-line-length = 100