diff --git a/tox.ini b/tox.ini
index fb807db..1566ee8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,7 @@ usedevelop =
 deps =
     dj18: django>1.8,<1.9
     dj18: django-tables2<1.1
+    dj18: django-jsonfield<1.1
     dj111: django>1.11,<1.12
     dj111: django-tables<2.0
     pg: psycopg2