Hibernian beat Rangers 2-1 at Easter Road on Sunday to close the gap on the Ladbrokes Championship leaders to five points.
Mark Warburton's side arrived in the capital having won all 11 league games this season but their 100% record was ended by Alan Stubbs' team, who made it eight wins and a draw in their last nine Championship matches.
Hibs top scorer Jason Cummings gave the hosts an early lead but Rangers levelled two minutes after the break when a Lee Wallace effort hit defender Darren McGregor and ended up in the net.
Paul Hanlon headed the winner with 17 minutes remaining as Hibernian gained revenge for a 1-0 defeat at Ibrox back in August.