Celtic are now nine points clear in the Ladbrokes Premiership after a 1-0 win against Aberdeen at Pittodrie this afternoon.
Tom Rogic fired home the only goal of the game midway through the first half as Brendan Rodgers' side came out on top in the North East.
Rangers are up to second place thanks to a 3-0 victory over Kilmarnock at Ibrox, with goals from Lee Wallace, Andy Halliday (penalty) and Joe Garner.
Hearts are third after hitting back from 2-0 down to draw 3-3 at Inverness CT, who led through David Raven, Lonsana Doumbouya and Aaron Doran. Bjorn Johnsen, Faycal Rherras and Arnaud Djoum replied for the visitors.
Motherwell notched up a 4-1 home win over Ross County, with goals from Scott McDonald, Kenny van der Weg (OG), Richard Tait and Lionel Ainsworth. Alex Schalk pulled one back for the Staggies.
Paul McGowan scored the only goal just after the hour mark to give bottom club Dundee a vital 1-0 win against Hamilton Accies at the SuperSeal Stadium.
Abdul Osman netted a stoppage-time winner as Partick Thistle defeated St Johnstone 2-1 at McDiarmid Park. Kris Doolan's opener was cancelled out by Steven MacLean but Osman struck with time running out.