Help: MM JP15 – Tremolo bar is loose

I’m new in the forum as well as in the earnieball family.
Just made the acquisition of a JP15 Blueberry burst guitar which sounds and looks fantastic!
However the tremolo bar is a little too loose for me and I’d like to strengthen it a little bit.
Unfortunately I really don’t knowhow to do that and whether it’s even possible.
Could anyone please help me?

Thanks a lot in advance,

Pierre,