diff --git a/CHANGELOG.md b/CHANGELOG.md
index 81d0179..f5c6e07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## [0.?.?](https://github.com/fgrehm/vagrant-lxc/compare/v0.3.4...master) (unreleased)
+## [0.4.0](https://github.com/fgrehm/vagrant-lxc/compare/v0.3.4...master) (unreleased)
 
   - Enable Chef for Ubuntu Raring base box
   - New box format [#89](https://github.com/fgrehm/vagrant-lxc/issues/89)
diff --git a/Gemfile.lock b/Gemfile.lock
index 5c90a77..3c3c263 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -14,7 +14,7 @@ GIT
 PATH
   remote: .
   specs:
-    vagrant-lxc (0.3.5.dev)
+    vagrant-lxc (0.4.0.dev)
 
 GEM
   remote: https://rubygems.org/
diff --git a/lib/vagrant-lxc/version.rb b/lib/vagrant-lxc/version.rb
index 5e116f7..7c00fe1 100644
--- a/lib/vagrant-lxc/version.rb
+++ b/lib/vagrant-lxc/version.rb
@@ -1,5 +1,5 @@
 module Vagrant
   module LXC
-    VERSION = "0.3.5.dev"
+    VERSION = "0.4.0.dev"
   end
 end