diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ channelstream==0.7.1
       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
@@ -58,7 +58,7 @@ channelstream==0.7.1
         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
@@ -198,7 +198,7 @@ pyramid-mailer==0.15.1
       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
@@ -218,7 +218,7 @@ pyramid-mako==1.1.0
       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