1 files changed, 4 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 1924a61..b8c8af0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,7 +29,10 @@ commands = {posargs}
 [testenv:docs]
 basepython = python2.7
 commands = python setup.py build_sphinx
-deps = -r{toxinidir}/doc/requirements.txt
+deps = 
+  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/pike}
+  -r{toxinidir}/doc/requirements.txt
+  -r{toxinidir}/requirements.txt
 
 [testenv:py27-func-rabbit]
 setenv =