Does update bower work at all?

[senlin]

I know that Foundation has been updated after I installed it, but when I run bower update no files seem to be updating:

bower foundation#*              cached git://github.com/zurb/bower-foundation.git#5.0.2
bower foundation#*            validate 5.0.2 against git://github.com/zurb/bower-foundation.git#*
bower jquery#>= 2.0.0           cached git://github.com/components/jquery.git#2.0.3
bower jquery#>= 2.0.0         validate 2.0.3 against git://github.com/components/jquery.git#>= 2.0.0
bower modernizr#>= 2.6.2        cached git://github.com/Modernizr/Modernizr.git#2.7.1
bower modernizr#>= 2.6.2      validate 2.7.1 against git://github.com/Modernizr/Modernizr.git#>= 2.6.2

Is there another way to update to version 5.0.3 (and other later versions for that matter)?

Thanks.