diff --git a/tox.ini b/tox.ini
index 59038fb8d..578f23708 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,7 @@ deps =
     pytest-html==1.6
     pytest-faulthandler==1.0.1
     pytest-sugar==0.5.1
+    pytest-bdd==2.15.0
     xvfbwrapper==0.2.5
     hypothesis==1.11.4
     coverage==4.0.1