diff --git a/CHANGELOG.md b/CHANGELOG.md
index 704978f..f3522cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,16 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ## [Unreleased]
 [![Travis CI master Build Status](http://img.shields.io/travis/zuazo/dockerspec.svg?style=flat)](https://travis-ci.org/zuazo/dockerspec)
 
+## [0.5.0] - 2017-08-30
+[![Travis CI 0.5.0 Build Status](http://img.shields.io/travis/zuazo/dockerspec/0.5.0.svg?style=flat)](https://travis-ci.org/zuazo/dockerspec)
+
+### Added in 0.5.0
+- Support specifying a build path when building images from a string ([issue #13](https://github.com/zuazo/dockerspec/issues/13), thanks [John Meichle](https://github.com/jmeichle)).
+
+### Fixed in 0.5.0
+- Fix OS detection with Specinfra `2.71`.
+- README: Fix small grammar error.
+
 ## [0.4.1] - 2017-03-21
 [![Travis CI 0.4.1 Build Status](http://img.shields.io/travis/zuazo/dockerspec/0.4.1.svg?style=flat)](https://travis-ci.org/zuazo/dockerspec)
 
@@ -97,7 +107,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 - Initial release of `dockerspec`.
 
-[Unreleased]: https://github.com/zuazo/dockerspec/compare/0.4.1...HEAD
+[Unreleased]: https://github.com/zuazo/dockerspec/compare/0.5.0...HEAD
+[0.5.0]: https://github.com/zuazo/dockerspec/compare/0.4.1...0.5.0
 [0.4.1]: https://github.com/zuazo/dockerspec/compare/0.4.0...0.4.1
 [0.4.0]: https://github.com/zuazo/dockerspec/compare/0.3.0...0.4.0
 [0.3.0]: https://github.com/zuazo/dockerspec/compare/0.2.0...0.3.0
diff --git a/README.md b/README.md
index f7f7d41..7deba95 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,9 @@
 [![Gem Version](https://badge.fury.io/rb/dockerspec.svg)](https://rubygems.org/gems/dockerspec)
 [![Dependency Status](http://img.shields.io/gemnasium/zuazo/dockerspec.svg?style=flat)](https://gemnasium.com/zuazo/dockerspec)
 [![Code Climate](http://img.shields.io/codeclimate/github/zuazo/dockerspec.svg?style=flat)](https://codeclimate.com/github/zuazo/dockerspec)
-[![Travis CI Build Status](http://img.shields.io/travis/zuazo/dockerspec.svg?style=flat)](https://travis-ci.org/zuazo/dockerspec)
+[![Travis CI Build Status](http://img.shields.io/travis/zuazo/dockerspec/0.5.0.svg?style=flat)](https://travis-ci.org/zuazo/dockerspec)
 [![Circle CI Build Status](https://circleci.com/gh/zuazo/dockerspec/tree/master.svg?style=shield)](https://circleci.com/gh/zuazo/dockerspec/tree/master)
-[![Coverage Status](http://img.shields.io/coveralls/zuazo/dockerspec.svg?style=flat)](https://coveralls.io/github/zuazo/dockerspec?branch=master)
+[![Coverage Status](http://img.shields.io/coveralls/zuazo/dockerspec/0.5.0.svg?style=flat)](https://coveralls.io/github/zuazo/dockerspec?branch=master)
 [![Inline docs](http://inch-ci.org/github/zuazo/dockerspec.svg?branch=master&style=flat)](http://inch-ci.org/github/zuazo/dockerspec)
 
 A small Ruby Gem to run RSpec, [Serverspec](http://serverspec.org/), [Infrataster](https://github.com/ryotarai/infrataster) and [Capybara](http://jnicklas.github.io/capybara/) tests against Dockerfiles or Docker images easily.
@@ -55,7 +55,7 @@ $ gem install dockerspec
 Or you can add this line to the *Gemfile* of your application:
 
 ```ruby
-gem 'dockerspec', '~> 0.4.1'
+gem 'dockerspec', '~> 0.5.0'
 ```
 
 And then execute:
@@ -392,7 +392,7 @@ If you are new to Ruby, you can follow these steps:
 
 source 'https://rubygems.org'
 
-gem 'dockerspec', '~> 0.4.1'
+gem 'dockerspec', '~> 0.5.0'
 ```
 
 #### 2. Create the *spec/* directory:
diff --git a/dockerspec.gemspec b/dockerspec.gemspec
index a9244a9..73e4373 100644
--- a/dockerspec.gemspec
+++ b/dockerspec.gemspec
@@ -10,7 +10,7 @@ require 'dockerspec/version'
 Gem::Specification.new do |s|
   s.name = 'dockerspec'
   s.version = ::Dockerspec::VERSION
-  s.date = '2017-03-21'
+  s.date = '2017-08-30'
   s.platform = Gem::Platform::RUBY
   s.summary = 'Dockerspec'
   s.description =
diff --git a/lib/dockerspec/version.rb b/lib/dockerspec/version.rb
index 6277177..0f89db1 100644
--- a/lib/dockerspec/version.rb
+++ b/lib/dockerspec/version.rb
@@ -25,5 +25,5 @@ module Dockerspec
   #
   # Dockerspec Ruby Gem version.
   #
-  VERSION = '0.5.0.dev'.freeze
+  VERSION = '0.5.0'.freeze
 end