--- a/tox.ini	Fri Sep 18 11:12:03 2015 +0200
+++ b/tox.ini	Fri Nov 20 14:17:46 2015 +0100
@@ -8,7 +8,9 @@
 [testenv:cubicweb]
 deps =
   -r{toxinidir}/test/requirements.txt
-commands = pytest -t test {posargs}
+commands =
+  {envpython} -m pip install --upgrade --no-deps --quiet git+git://github.com/logilab/yapps@master#egg=yapps
+  pytest -t test {posargs}
 
 [testenv:dataimport]