diff --git a/tox.ini b/tox.ini
index a76c4b1..a206c4b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,12 +1,9 @@
 [tox]
 # https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django
 envlist =
-    py{27,34,35,36}-django111-drf37,
-    py{27,34,35,36}-django111-drf38,
-    py{34,35,36,37}-django20-drf37,
-    py{34,35,36,37}-django20-drf38,
-    py{35,36,37}-django21-drf37,
-    py{35,36,37}-django21-drf38,
+    py{27,34,35,36}-django111-drf{37,38},
+    py{34,35,36,37}-django20-drf{37,38},
+    py{35,36,37}-django21-drf{37,38},
     djmaster, lint, docs
 
 [testenv]