This buildpack is intended for use after the regular ruby-buildpack.

If you are using the default buildpack, manually set your buildpack to Heroku's default Ruby buidlpack

heroku buildpacks:set https://github.com/heroku/heroku-buildpack-ruby 

Append the buildpack-ruby-rake-deploy-tasks to your buildpack list:

heroku buildpacks:add https://github.com/gunpowderlabs/buildpack-ruby-rake-deploy-tasks 

Configure DEPLOY_TASKS environment variable with the tasks you want to run:

heroku config:set DEPLOY_TASKS='db:migrate cache:clear' 

MIT, see the LICENSE file.