How do I update devDependencies in NPM?

Question

npm update seems to just update the packages in dependencies, but what about devDependencies.

Right now you can install

Answer 1

One (slow) way to do force the update, is to remove the node_modules directory, and then do npm install again.

This was a known bug of the npm update command, which has been fixed on the development branch of npm, see here: https://github.com/isaacs/npm/pull/3863

It should land on the latest stable version of npm pretty soon.