Managing Gems

Last Updated: 31 January 2012

bundler gem gem dependency

Table of Contents

Ruby gems can be installed on Heroku via Bundler. In addition, for compatibility with legacy applications Heroku also still supports the .gems manifest. It is important that you use only one in your application in order to avoid confusion.

Bundler

Bundler is the best way to manage your gems. We suggest all apps on Heroku use Bundler. See our bundler page for full details on Bundler support.

Gem Manifest

The .gems manifest is deprecated. See the gem manifest page for full details on .gems support.

Frequently Asked Questions

How do I install gems for my app?

Almost any gem - even those with native dependencies - can be installed using Bundler. If there’s a specific gem that won’t install on Heroku, please submit a support ticket.