Aberdeen moved to within two points of Premiership leaders Celtic thanks to a 1-0 victory at Inverness on Sunday afternoon.
Peter Pawlett scored the only goal after 12 minutes as the Dons leapfrogged Dundee United to go second in the table.
It was a fifth successive Premiership victory without the loss of a goal for Derek McInnes' men, who are at home to St Johnstone on New Year's Day.
Billy McKay was denied a late equaliser for Caley Thistle when he struck the woodwork as John Hughes' team slipped to a third straight defeat ahead of Thursday's Highland derby.