diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ pyramid==2.0.2
     pastedeploy==3.1.0
     plaster==1.1.2
   translationstring==1.4
-  venusian==3.0.0
+  venusian==3.1.0
   webob==1.8.9
   zope.deprecation==5.0.0
   zope.interface==7.1.1