It's suggested that you use the latest version of the release buildpack. You can set it using the heroku-cli. heroku buildpacks:set heroku/nodejs Your builds will always used the latest published ...
This is a Heroku Buildpack for Ruby, Rack, and Rails apps. It uses Bundler for dependency management. This buildpack requires 64-bit Linux. $ ls Gemfile Gemfile.lock $ heroku create --buildpack heroku ...