diff --git a/CHANGELOG.md b/CHANGELOG.md
index f86df6a..cb6012f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Change Log
 
+## v0.5.0 (2017/04/13)
+- This release brought to you by the tireless @asgoel
+- Core suppression list support
+- Poison dependency relaxed to ~> 3.0
+- Fixed an issue caused by a double slash in API URL
+
 ## v0.4.0 (2017/02/28)
 - Template preview support contributed by @asgoel - Thanks!
 
diff --git a/README.md b/README.md
index b67c124..95fea18 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ Capabilities include:
   def deps do
     [
       {:ibrowse, github: "cmullaparthi/ibrowse", tag: "v4.1.2"},
-      {:sparkpost, "~> 0.3.0"}
+      {:sparkpost, "~> 0.5.0"}
     ]
   end
   ```
diff --git a/lib/suppression_list.ex b/lib/suppression_list.ex
index 1e158ac..f341a6b 100644
--- a/lib/suppression_list.ex
+++ b/lib/suppression_list.ex
@@ -9,7 +9,7 @@ defmodule SparkPost.SuppressionList do
   or use the [SparkPost API reference](https://developers.sparkpost.com/api/suppression_list.html) for details.
 
   Returned by `SparkPost.SuppressionList.delete/1`:
-    - {:ok, ""}
+    - \\{:ok, ""}
 
   Returned by `SparkPost.SuppressionList.upsert_one/3`:
     - {:ok, message} (A success message string)
diff --git a/lib/transmission.ex b/lib/transmission.ex
index 5beddc1..1c94d16 100644
--- a/lib/transmission.ex
+++ b/lib/transmission.ex
@@ -1,7 +1,7 @@
 defmodule SparkPost.Transmission do
   @moduledoc """
   The SparkPost Transmission API endpoint for sending email. Use `SparkPost.Transmission.send/1` to
-  send messages, SparkPost.Transmission.list/1 to list previous sends and SparkPost.Transmission.get/1 to
+  send messages, `SparkPost.Transmission.list/1` to list previous sends and `SparkPost.Transmission.get/1` to
   retrieve details on a given transmission.
 
   Check out the documentation for each function
diff --git a/mix.exs b/mix.exs
index c081aac..cf076a1 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule SparkPost.Mixfile do
 
   def project do
     [app: :sparkpost,
-     version: "0.4.0",
+     version: "0.5.0",
      elixir: "~> 1.2",
      build_embedded: Mix.env == :prod,
      start_permanent: Mix.env == :prod,