diff --git a/setup.py b/setup.py
index fdc3f3f..f290828 100644
--- a/setup.py
+++ b/setup.py
@@ -42,6 +42,7 @@ CLASSIFIERS = [
     'Programming Language :: Python :: 2.7',
     'Programming Language :: Python :: 3.3',
     'Programming Language :: Python :: 3.4',
+    'Programming Language :: Python :: 3.5',
 ]
 KEYWORDS = ['file',
             'stream',
diff --git a/tox.ini b/tox.ini
index f466cdc..85408af 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,17 +1,19 @@
 [tox]
-envlist = py{27,33,34}-django{15,16,17,18}, flake8, sphinx, readme
+envlist = py{27}-django{15,16,17,18,19}, py{33,34}-django{15,16,17}, py{34,35}-django{18,19}, flake8, sphinx, readme
 
 [testenv]
 basepython =
     py27: python2.7
     py33: python3.3
     py34: python3.4
+    py35: python3.5
 deps =
     coverage
     django15: Django>=1.5,<1.6
     django16: Django>=1.6,<1.7
     django17: Django>=1.7,<1.8
     django18: Django>=1.8,<1.9
+    django19: Django>=1.9,<1.10
     nose
     py27: mock
 commands =
@@ -22,14 +24,14 @@ commands =
     pip freeze
 
 [testenv:flake8]
-basepython = python2.7
+basepython = python3.5
 deps =
     flake8
 commands =
     flake8 demo django_downloadview tests
 
 [testenv:sphinx]
-basepython = python2.7
+basepython = python3.5
 deps =
     Sphinx
 commands =
@@ -39,7 +41,7 @@ whitelist_externals =
     make
 
 [testenv:readme]
-basepython = python2.7
+basepython = python3.5
 deps =
     docutils
     pygments
@@ -51,7 +53,7 @@ whitelist_externals =
     mkdir
 
 [testenv:release]
-basepython = python2.7
+basepython = python3.5
 deps =
     wheel
     zest.releaser