Rangers striker Alfredo Morelos scored his 100th goal for the Scottish champions as they moved three points clear at the top of the table with a 2-1 win at St Mirren on Sunday.
Steven Gerrard's side were rocked after just four minutes when St Mirren midfielder Connor Ronan fired home from 30 yards.
But Rangers recovered to level in the 41st minute through a Kemar Roofe penalty.
Morelos has struggled to find his best form this season, but the Colombia international headed the visitors in front two minutes later with his milestone goal.
Rangers rarely hit top form after the break but held on to inflict a first defeat in seven games for Jim Goodwin's team.
It was an important success for Rangers as they maintained their momentum, after a crucial 2-0 Europa League win over Brondby at Ibrox on Thursday.
Ahead of Aberdeen's visit to Ibrox on Wednesday, Rangers are three points clear of Hearts and Dundee United.
They are also four points ahead of Old Firm rivals Celtic, who have reeled off four successive victories. (AFP)

D’Tigress begin US tour with historic Sparks clash
Tinubu congratulates basketball star Anosike on NBL title, MVP award in China
NSC announces UK trials for diaspora athletes
Adams calls for urgent reset in Nigerian football
Playing for Nigeria felt like playing for Real Madrid – Arokodare
Playing for Nigeria felt like playing for Real Madrid – Arokodare
NFF opens talks with Osula over Eagles switch
Brume, Okezie join global stars for Kip Keino Classic
NPFL confirms May 24 season end date
NCF proposes elite cricket league
Trump envoy wants Italy to replace Iran at World Cup — Report
Gala intensify Osimhen’s special recovery plan
Rangers International going, going . . . (63,727 views)
Amaju Pinnick: A cat with nine lives (55,051 views)
Second Term: Amaju Pinnick, Other NFF Heavyweights Home to Roost •How Pinnick Broke the Jinx (52,983 views)
Current issues in Nigerian sports: Matters arising (52,575 views)
Sports Development: Zenith Bank on the zenith (52,503 views)
Missing $150,000 IAAF Grant: Solomon Dalung’s Hide and Seek game (52,403 views)
Gov. Abdullahi Ganduje’s solid footprints, commitment to sports development in Kano State (52,254 views)
NFF Presidency: Pinnick, Maigari, Ogunjobi, Okoye in Battle for Supremacy (51,800 views)
Olopade, BET9A wave of revolution in NNL (50,988 views)
Commonwealth Games 2018: Shame of Muhammadu Buhari, Solomon Dalung (49,496 views)
Ibrahimovic’s Man U exit: Whose decision is it? And in whose interest? (47,912 views)
John Mikel Obi: Segun Odegbami’s Outrageous Call! (47,375 views)