diff --git a/tox.ini b/tox.ini
index cb4b11c..88bbfee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = {py27,py33,py34,pypy,pypy3}-django18, {py27,py34,py35,pypy}-django{19,110}, coverage, docs, flake8
+envlist = {py27,py33,py34,pypy,pypy3}-django18, {py27,py34,py35,pypy}-django{19,110}, coverage, docs, flake8, mypy-py{2,3}
 ; https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django
 
 [testenv]
@@ -35,3 +35,13 @@ commands =
 basepython = python2.7
 deps = flake8
 commands = flake8 channels/
+
+[testenv:mypy-py2]
+basepython = python2.7
+deps = mypy-lang
+commands = mypy --py2 --silent-imports -m channels
+
+[testenv:mypy-py3]
+basepython = python3.5
+deps = mypy-lang
+commands = mypy --silent-imports -m channels