TPA3255EVM: TPA3255 IC and heatsink contact issue ?

Part Number: TPA3255EVM
Other Parts Discussed in Thread: TPA3255

Tool/software:

Dear All,

We are using a EVM board heatsink on TPA3255 IC in one of pur application

Heatsink surface is touching positively (interference contact)  on IC heat dissipating area  -

Is it going to be a problem for longer run -since the heatsink surface is touching on IC surface and there is a pressure created over an IC surface ?? 3

what would be the idea design in this case ?