diff --git a/lib/vagrant/version.rb b/lib/vagrant/version.rb
index 3a3be6bc5..39f3c809a 100644
--- a/lib/vagrant/version.rb
+++ b/lib/vagrant/version.rb
@@ -2,5 +2,5 @@ module Vagrant
   # This will always be up to date with the current version of Vagrant,
   # since it is used to generate the gemspec and is also the source of
   # the version for `vagrant -v`
-  VERSION = "1.3.6.dev"
+  VERSION = "1.4.0.dev"
 end