1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index ac1fda6f..5b546391 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,6 +20,7 @@ deps =
   nose
   py34,py35,py36: numpy
   py34,py35,py36: attr
+  py34,py35,py36: typed_ast
   pytest
   python-dateutil
   pypy: singledispatch