Schrade 293 trapper with loose blades

[gohammergo]

Hello all, I just received an older Schrade 293 two bladed trapper knife. Great shape as far as handles and blades go, except that the blades have side to side wiggle. Is there a way to tighten them up, maybe in a vise? Or, would I have to remove the bolsters and peen the rivets? If so, how do I go about doing such a thing? Thanks in advance for any help, John