Last updated October 20, 2025 Using Bundler Locally All currently supported versions of Ruby on Heroku have a default version of bundler. You can install a specific version by running the command: $ gem install bundler -v <version> To manage gems in your project, create a file named Gemfile in the root of your app specifying what gems are required to run it: source "https://rubygems.org" gem 'sina

