St Mirren will again be playing in the William Hill Premiership next season after beating Partick Thistle 1-0 in the second leg of the play-off final in Paisley.
It was 1-1 in the first leg at Firhill on Thursday and it was another tense and tight encounter in front of 7,472 fans at the SMISA Stadium on Monday night.
Marcus Fraser scored the crucial goal after 65 minutes when he guided the ball in off the crossbar - the goal was confirmed following a VAR check for a potential offside.