jQuery 2 is out and whilst I’m keen to embrace new things, a lot of 3rd party libraries have jQuery 1.* as a dependency. If you just update jQuery using Nuget, it brings down jQuery 2.*, which may not be what you want.

So, the easiest way to target a specific version is to using the following command with the Package Manager Console (I chose 1.10.1 as an example):
PM> Install-Package jQuery -Version 1.10.1