diff --git a/mix.exs b/mix.exs
index 8ab2ce3..bf8e426 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,26 +1,26 @@
 defmodule ExIrc.Mixfile do
   use Mix.Project
 
   def project do
     [ app: :exirc,
       version: "0.4.0",
-      elixir: "~> 0.13.0-dev",
+      elixir: "~> 0.13.1",
       description: "An IRC client library for Elixir.",
       package: package,
       deps: [] ]
   end
 
   # Configuration for the OTP application
   def application do
     [mod: {ExIrc.App, []}]
   end
 
   defp package do
     [ files: ["lib", "mix.exs", "README.md", "LICENSE"],
       contributors: ["Paul Schoenfelder"],
       licenses: ["MIT"],
       links: [ { "GitHub", "https://github.com/bitwalker/exirc" },
                { "Home Page", "http://bitwalker.org/exirc"} ] ]
   end
 
 end