1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 9936fe7081..89a57af6f5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -171,6 +171,7 @@ description =
 # to install (test-)requirements.txt for docs.
 deps =
   -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri}
+  -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt
 commands =
   rm -rf doc/build/html doc/build/doctrees