diff --git a/mix.exs b/mix.exs
index 5cfe9b1..06a827d 100644
--- a/mix.exs
+++ b/mix.exs
@@ -2,7 +2,7 @@ defmodule BambooSmtp.Mixfile do
   use Mix.Project
 
   @project_url "https://github.com/fewlinesco/bamboo_smtp"
-  @version "4.2.1"
+  @version "4.2.2"
 
   def project do
     [