diff --git a/tox.ini b/tox.ini
index d468c22..92c1675 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,6 +18,7 @@ deps =
     https://github.com/nephila/djangocms-helper/archive/develop.zip
     py26: unittest2
     django-parler<1.5
+    django-mptt<0.8
     https://github.com/aldryn/aldryn-apphooks-config/archive/master.zip
     https://github.com/nephila/djangocms-apphook-setup/archive/master.zip