diff --git a/tox.ini b/tox.ini
index b6dedfc01..8315de9b0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -42,3 +42,8 @@ deps=
 deps=
     docutils==0.9.1
     {[testenv]deps}
+
+[testenv:du10]
+deps=
+    docutils==0.10.0
+    {[testenv]deps}