diff --git a/tox.ini b/tox.ini
index 92cea737c..cc6a1d2bf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -46,5 +46,5 @@ deps=
 
 [testenv:du10]
 deps=
-    docutils==0.10.0
+    docutils==0.10
     {[testenv]deps}