diff --git a/lib/mandrill-rails/version.rb b/lib/mandrill-rails/version.rb
index 0b019c5..766d26f 100644
--- a/lib/mandrill-rails/version.rb
+++ b/lib/mandrill-rails/version.rb
@@ -3,5 +3,5 @@ module Rails
   end
 end
 unless defined?(Mandrill::Rails::VERSION)
-  Mandrill::Rails::VERSION = "1.3.1"
+  Mandrill::Rails::VERSION = "1.4.0"
 end