diff --git a/mix.exs b/mix.exs
index de68316..f1d3d4a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule LogstashJson.Mixfile do
 
   def project do
     [app: :logstash_json,
-     version: "0.3.0",
+     version: "0.4.0",
      elixir: "~> 1.3",
      description: description(),
      package: package(),