Greenkeeper checks the dependencies of the project. If they are outdated, it creates a pull request on GitHub.
greenkeeper is a friendly bot that tells you when updates to your dependencies break your software. it automatically detects the latest working version and you can then choose to either immediately fix the issue or just pin the dependency so you can get back to it once you have the time. either way: no more broken software.
greenkeeper takes away these chores of dependency management: for each update to any of your dependencies, our bot immediately runs npm install and npm test. there is no more doubt about the state of your software, you’ll always know when it breaks.
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github node.js dependencies