Connor Ronan eased St Mirren’s worries about relegation and added Hibernian’s problems after scoring the only goal in a narrow 1-0 Premier League victory at Easter Road.
The loaned Wolves midfielder threw himself over an error from Jake Doyle-Hayes in the 62nd minute before firing a violent drive past Kevin Dabrowski.
The win moves the Saints 11 points ahead of bottom side Dundee and only within one of the top six.
The Hibs were buzzing with their fans full time after their unbeaten league run stretched to five games, which includes that they could not find the net in four of those games.
The home team had looked lively at the start of the second half after a bad first half, but they had to pay not to score as they were at the top.
Hibernian manager Shaun Maloney continued to show confidence in Dabrowski in goal after a man-of-the-match performance on his debut in midweek draw with city rivals Hearts.
The shot stopper was the busiest of the two goalkeepers in a first half overtaken by St. Mirren.
With 17 minutes played, the home side managed to get a 1 – 0 lead as Richard Tait flipped the ball in after a cross from the right.
Jordan Jones then got a chance from a similar area, but the result was still the same.
St. Mirren looked particularly lively on the counter, and Jay Henderson forced a save from Dabrowski in the 22nd minute when Rocky Bushiri made the return.
In a rare opening at the other end, Kevin Nisbet and Christian Doidge combined to set Chris Mueller free in the box, but the American national team player was denied a Joe Shaughnessy challenge in the last gasp.
Hibs brought Ewan Henderson to Doidge at the break, and the hosts looked far more threatening.
Henderson was dismissed by a brilliant Jack Alnwick save from a Nisbet break before the former Celtic youngster narrowly missed.
The same two were rejected again a few moments later, but this time Henderson’s shot was skillfully pushed over the crossbar by the Saints goalkeeper.
The hosts’ waste of attack came to haunt them again as Ronan gave St Mirren the lead in the 62nd minute.
The midfielder pinched the ball by Doyle-Hayes just outside the box and drove forward before drilling a thunderous drive past Dabrowski from 18 yards.
Nisbet was so close to equalizing moments later with a first-half drive from inside the area, but Alnwick somehow managed to push the shot over the post.
Maloney called for the changes from the bench while looking for inspiration, but St. Mirren held on.
Hibernian travels to Rangers on Wednesday – kick-off at. 19.45 – while St Mirren hosts St Johnstone the same day, also at 19.45.