diff --git a/CHANGELOG.md b/CHANGELOG.md
index a12865e..3a9a4bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 0.4.0
+
+### New Additions
+
+* Allow configuration of request options ([#12])
+
+[#12]: https://github.com/pablo-co/bamboo_postmark/pull/12
+
 ## 0.3.0
 
 ### New Additions
diff --git a/README.md b/README.md
index 43ad1ac..5e64dc7 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ The package can be installed as:
 ```elixir
 def deps do
   # Get from hex
-  [{:bamboo_postmark, "~> 0.3.0"}]
+  [{:bamboo_postmark, "~> 0.4"}]
   # Or use the latest from master
   [{:bamboo_postmark, github: "pablo-co/bamboo_postmark"}]
 end
diff --git a/lib/bamboo/postmark_helper.ex b/lib/bamboo/postmark_helper.ex
index 1e9f283..01ba0d5 100644
--- a/lib/bamboo/postmark_helper.ex
+++ b/lib/bamboo/postmark_helper.ex
@@ -26,7 +26,6 @@ defmodule Bamboo.PostmarkHelper do
   Postmarks's API docs for this can be found [here](https://www.mandrillapp.com/api/docs/messages.JSON.html#method=send-template).
 
   ## Example
-
     template(email, "9746128")
     template(email, "9746128", %{"name" => "Name", "content" => "John"})
   """
@@ -40,7 +39,6 @@ defmodule Bamboo.PostmarkHelper do
   Put extra message parameters that are used by Postmark. You can set things like TrackOpens or TrackLinks.
 
   ## Example
-
     put_params(email, "TrackLinks", "HtmlAndText")
     put_params(email, "TrackOpens", true)
   """
diff --git a/mix.exs b/mix.exs
index 73ba716..753563c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -5,7 +5,7 @@ defmodule BambooPostmark.Mixfile do
 
   def project do
     [app: :bamboo_postmark,
-     version: "0.3.0",
+     version: "0.4.0",
      elixir: "~> 1.2",
      source_url: @project_url,
      homepage_url: @project_url,