Alex Dunbar scored on his return to the side against Connacht last Friday and shifts to twelve.
Ali Price and Finn Russell start in the half-back positions, swapping in for Henry Pyrgos and Peter Horne who are both on the bench in Belfast.
Lelia Masaga starts on the wing with Tommy Seymour and Stuart Hogg completing the back-three.
Siua Halanukonuka starts at tight-head prop. Fraser Brown and Alex Allan are the other front-row forwards.
Tim Swinson comes into the second-row alongside Scott Cummings, while the loose-forwards remain unchanged and Callum Gibbins once again captains the side.
Ryan Grant comes onto the bench, along with Greg Peterson and Matt Smith. Centre Nick Grigg completes the 23.
Glasgow Warriors Head Coach Dave Rennie, said: "We are rapt to have confirmed a home semi-final berth and see the next couple of weeks as a chance to build momentum against tough away opponents.
"Ulster still have a chance to qualify for the Final Series and Europe so have plenty to play for.
"They lead the competition in line-breaks so keeping players like Jacob Stockdale and Charles Piutau quiet will be crucial."
15 Stuart Hogg
14 Tommy Seymour
13 Huw Jones
12 Alex Dunbar
11 Lelia Masaga
10 Finn Russell
9 Ali Price
1 Alex Allan
2 Fraser Brown
3 Siua Halanukonuka
4 Scott Cummings
5 Tim Swinson
6 Robert Harley
7 Callum Gibbins (Captain)
8 Matt Fagerson
Substitutes
16 George Turner
17 Ryan Grant
18 Zander Fagerson
19 Greg Peterson
20 Matt Smith
21 Henry Pyrgos
22 Peter Horne
23 Nick Grigg
Not available due to injury: Adam Ashe (ankle), Jonny Gray (shoulder), Oli Kebble (ankle), Patrick Kelly (ankle), Pat MacArthur (shoulder), Kiran McDonald (shoulder), DTH van der Merwe (thigh), Leonardo Sarto (shoulder) and Ryan Wilson (chest)