diff --git a/Gemfile b/Gemfile
index a2c5168..3165e6c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,6 +10,8 @@ gem 'sqlite3'
 gem 'yaml_db'
 gem 'mysql2'
 
+gem 'unicorn'
+
 # Asset template engines
 gem 'sass-rails', "~> 3.1.0.rc"
 gem 'coffee-script'