diff --git a/doc/requirements.txt b/doc/requirements.txt
index 33b2d2bdc4a..7b19b370599 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,7 +1,6 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7'  # BSD
 sphinx!=1.6.6,!=1.6.7,!=2.1.0,>=1.6.2;python_version>='3.4' # BSD
 openstackdocstheme>=1.30.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index da5820d49c9..8270a90bfc3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -209,3 +209,10 @@ deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/requirements.txt
+
+[testenv:requirements]
+deps =
+  -egit+https://opendev.org/openstack/requirements#egg=openstack-requirements
+whitelist_externals = sh
+commands =
+    sh -c '{envdir}/src/openstack-requirements/playbooks/files/project-requirements-change.py --req {envdir}/src/openstack-requirements --local {toxinidir} master'