The first of those changes sees 16-year-old Rory Whittaker return to the starting XI at right-back. Rory replaces Lewis Miller who is unavailable due to suspension.
The other change is at full-back with Lewis Stevenson coming back into the side on the left-hand side. Will Fish and Rocky Bushiri both keep their place at centre-back in front of David Marshall in goal.
The rest of the team is unchanged; Joe Newell captains the Hibees and starts alongside Dylan Levitt, Josh Campbell and Jair Tavares in midfield.
Dylan Vente and Martin Boyle lead the line for Hibs this afternoon.
On the bench, Montgomery has plenty of options to choose from with Elie Youan, Christian Doidge, Paul Hanlon and Jimmy Jeggo all named among the substitutes.
Teenagers Josh Landers and Rudi Molotnikov are also involved in the matchday squad, however, Jordan Obita misses out through injury.
Chris Cadden, Adam Le Fondre, Jake Doyle-Hayes and Harry McKirdy all remain longer-term absentees.
Starting XI
1. David Marshall (GK)
5. Will Fish
6. Dylan Levitt
9. Dylan Vente
10. Martin Boyle
11. Joe Newell ©
16. Lewis Stevenson
29. Jair Tavares
32. Josh Campbell
33. Rocky Bushiri
49. Rory Whittaker
Substitutes
13. Jojo Wollacott (GK)
4. Paul Hanlon
7. Elie Youan
14. James Jeggo
23. Christian Doidge
26. Riley Harbottle
28. Allan Delferrière
35. Rudi Molotnikov
53. Josh Landers