diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37b89f1..e90b4b5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@ This project intends to inhere to [Semantic
 Versioning](http://semver.org/spec/v2.0.0.html), but has not yet reached 1.0 so
 all APIs might be changed.
 
-## Unreleased - yyyy-mm-dd
+## v0.9.0 - 2018-08-28
 
 ### New Features
 
diff --git a/README.md b/README.md
index bd632b8..55a3c9a 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ If [available in Hex](https://hex.pm/docs/publish), the package can be installed
 
 ```elixir
 def deps do
-  [{:kazan, "~> 0.8"}]
+  [{:kazan, "~> 0.9"}]
 end
 ```
 
diff --git a/mix.exs b/mix.exs
index 3387fc2..3077cf2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule Kazan.Mixfile do
 
   def project do
     [app: :kazan,
-     version: "0.8.0",
+     version: "0.9.0",
      elixir: "~> 1.4",
      build_embedded: Mix.env == :prod,
      start_permanent: Mix.env == :prod,