Gary Irvine (knee), Gary Harkins (shin) and Luka Tankulic (hamstring) will miss the game through injury, but Jim McAlister is back after a hernia operation and Greg Stewart looks set to start.
Hartley is hoping his side can take their impressive away form into Saturday’s clash with Inverness in the Highlands.
The Dark Blues haves shown they can handle life on their travels since coming back up to the top flight, and dug out a 0-0 draw at Caley back in August.
And Hartley has called on his players to show their mettle once more as they chase a top-six spot.
“That’s been a pleasing part of our season,” Hartley said. “It’s something we should take heart from.
“We have been steady on the road, with strong performances. We have been hard to beat at times and we will have to be that again on Saturday.
“We have to be solid, have a good shape about us, work hard and be disciplined. The focus and concentration have to be good. It’s all about the right preparation for the players and no excuses.”
Dundee ran Inverness close the last time round only to fall to a late defeat at Dens Park.
But Hartley believes they have cause to be confident after holding Aberdeen to a 1-1 draw in their last outing.
He said: “They have been good games between us this season.
“The first one up there was pretty close; the second game here, we played well for 45 minutes and then they played well for the second 45 and we were hit with a sucker-punch with the last kick of the ball.
“So I think when you go up to Inverness, with the way (manager) John (Hughes) sets his team out, you are in for a tough game.
“They play good football. It is a total change from how they played before a year or 18 months ago. The style of football is good to watch and easy on the eye.
“As for ourselves, we gave a good account in the recent Aberdeen game. There was a lot for us to be pleased about overall.”
Inverness have an unchanged squad for the Scottish Premiership encounter with Dundee.
Dean Brill is pushing Ryan Esson for the goalkeeper’s jersey after recovering from a knee injury.
Long-term absentee Richie Foran (knee) remains on the sidelines.