Updating dependencies from the pallete

I have just updated node-rfxcom, which is a dependency of node-red-contrib-rfxcom. What is the preferred way to update the dependencies of a pallet installed node? (and their dependencies, etc)

In general the "outer" node (eg node-red-contrib-rfxcom) would need to bump its dependencies and its version number and be pushed to npm. When the user then updates that node it would then drag in the dependency.

OK - I just wondered if there might be an equivalent of npm outdated, but it seems not.

Version 2.9.1 of node-red-contrib-rfxcom just published!