npm version does allow to set versions smaller than the current version

[seriousManual]

its easy to accidently write npm version 0.0.1 instead of npm version 1.0.1.
maybe outputting a warning to the user or demanding the usage of a force parameter to actually set a lower version would by sufficient.

[rlidwka]

It's a half measure, writing 10.0.1 instead of 1.0.1 is as undesirable as 0.0.1 really.

You should probably use npm version patch/minor/major instead.

[seriousManual]

i agree.
but as long the specification of a certain version is possible why not doing a little sanity check?
a check for the same version is present so checking for a smaller version as well makes sense.

[luk-]

This really doesn't protect you from anything.

[timoxley]

@zaphod1984 can you please close this in favour of your pull request?

FYI a handy way to convert an issue to a PR (at least on osx) is using hub

[seriousManual]

will do, thanks for the heads up.