diff --git a/Gemfile b/Gemfile
index f69d498..4eb11ab 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,6 +2,7 @@ source 'https://rubygems.org'
 
 gem 'rake'
 gem 'yard'
+gem 'simple_oauth', git: 'https://github.com/samsonjs/simple_oauth.git', tag: 'v0.3.2'
 
 gem 'jruby-openssl', platforms: :jruby
 gem 'json', platforms: :mri_19