Forget the mojitos, break out some tap water: The hard-partying cast of MTV’s Jersey Shore is heading to Miami for Season Two and network executives want to be sure all seven housemates are good and sober when they descend on South Beach.

We hear MTV has banned the cast of its wildly-popular series from indulging any alcoholic beverages until filming begins on the show’s second season later this month. Jenni “JWoww” Farley made an appearance in Boston over the weekend, but much to everyone’s surprise, the reality starlet shied away from all of her favorite liquors.

“MTV doesn’t want [the cast] to drink,” one FOX News source snitched.