Rangers closed in on Glasgow rivals Celtic at the top of the Scottish Premiership with a 2-0 win at St. Mirren on Saturday.
A penalty from the in-form Ryan Naderi and Dan Neil's second-half strike cut the gap between the top two to just one point.
Both sides have played 12 games but Celtic can extend their lead when they host Kilmarnock on Sunday.
After a slow start to Derek McInnes's reign in charge, Rangers have now won 11 and drawn one of their last 12 matches in all competitions.
Naderi wasted an early chance to break the deadlock, but the Czech striker slotted home his ninth goal of the season from the spot after James Penrice tumbled in the box.
Neil's deflected effort just after the hour mark sealed the three points to ramp up the pressure on Celtic.
Earlier, Hibernian moved off the foot of the table by scoring four second-half goals to thrash Aberdeen 4-0 at Pittodrie.
The Edinburgh side move above Aberdeen into 10th as new manager Marink Reedijk built on last weekend's League Cup semifinal win over local rivals Hearts.
St. Johnstone beat Dundee 2-1, while Dundee United and Motherwell played out a 1-1 draw.