Update VY Calais sat nav map pack

[VY-Calais.]

I have a VY Calais series II with factory fitted satellite navigation. Obviously as the car is over 10 years old, the map pack is outdated. I was wondering if there is a way to update the map pack, i.e., do I just require a disc that needs to go into the disc drive that's located in the boot? Any help and advice is appreciated! Cheers.