Rangers have moved back to the top of the Premiership after a 2-0 win over Ross County.
Captain James Tavernier opened the scoring from the penalty spot early in the first half.
And a goal from Brandon Barker two minutes from time was enough to secure the three points.
The victory sends Steven Gerrard’s men a point clear of Celtic having played a game more than their Glasgow rivals.
They will remain top until at least October 17 when the sides meet each other at Celtic Park.
There will be no league games played until then as the Premiership stops for the international break.
Celtic briefly took the top spot earlier on Sunday after a 2-0 win over St Johnstone.
Speaking after the game Rangers assistant manager Gary McAllister praised Tavernier’s goal return.
He said: “It is phenomenal from a full-back.
“There was a period when he missed a couple and the penalties went away from him.
“I hit penalty kicks in my career, I also missed penalty kicks. But James’ technique is superb, it’s second to none. He has now regained that confidence to go and put his laces through it.
“He has wonderful technique and is one of the best penalty kick takers I have seen. I’m very impressed.
“The result is very good, another clean sheet here at Ibrox,” added McAllister.
“We’re still unbeaten. The performance, I think we can do better. That’s pretty obvious.
“We were a wee bit bitty, we didn’t get into any rhythm today.”
On Barker’s goal he said: “I think that was an example of what Brandon can achieve as a player. He’s very strong on both sides.
“If he’s going outside on to his right or with his goal today coming on to his left, he’s got a powerful strike on both sides. That’s what he brings, allied to his pace. We are going to ask a lot of Brandon moving forward.”