[lollipop25]

Then you aren't understanding how bundling works, or NPM for that matter, and probably writing bad code.

If you have `foo` that depends on `baz 1.1` and `bar` that depends on `baz 1.2`, then the bundle will consist of `foo`, `bar`, `baz 1.1` AND `baz 1.2`. However, `foo` will not be aware of `baz 1.2`, `bar` will not be aware of `baz 1.1`. They work with their respective dependencies and all is well.

`foo` and `bar` should not even reveal implementation and should not even care of each other's implementation. What `foo` cares about is `bar`'s API, `bar` should care about is `foo`'s API, not their implementation, dependencies etc.

An analogy would be jQuery and it's dependency to Sizzle (which, coincidentally, is bundled with jQuery). Would it matter to you if jQuery 1.7 used Sizzle 1 and jQuery 1.8 used Sizzle 10? No. What matters to you is you're using jQuery, and what you see is a 0.x.x bump of jQuery, not the x.x.x bump of Sizzle.