diff --git a/README.md b/README.md
index f7b8ebf..4c05200 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Parse Cron Format Strings, Write Cron Format Strings and Caluclate Execution Dat
 
     ```elixir
     def deps do
-      [{:crontab, "~> 1.0.0-beta.3"}]
+      [{:crontab, "~> 1.0.0-beta.4"}]
     end
     ```
 
diff --git a/mix.exs b/mix.exs
index d045ebe..7246816 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule Crontab.Mixfile do
   use Mix.Project
 
-  @version "1.0.0-beta.3"
+  @version "1.0.0-beta.4"
 
   def project do
     [app: :crontab,