"Joning" Poking Fun

Okay so my whole life ppl have always "joned" (however you spell that shit) or "roasted" each other, but I never did it cuz mfs be taking it too far. But I have some friends that are usually super great except when they do that & it really bothers me & they know this. Also I told one of them I was depressed & they often make jokes about it or take it lightly. But any other time their incredibly great, & I already don't have that many companions as it is. When they saw that it really really bothered me this time they apologized, but I feel like sometime they'll do it again. What should I do??