Jack Baird comes in for the injured Harry Davis as Jack Ross makes two changes from the side that defeated Dundee United on Wednesday.
John Sutton drops to the bench to be replaced by Kyle Magennis in the other change.
Kick-off is at 3pm and we'll have all the action covered on our Twitter and Facebook.
St Mirren: O'Brien, Irvine, Baird, MacKenzie, Eckersley, McGinn, Mallan, Magennis, Smith, Morgan, Loy
Subs: Langfield, Webster, Fjelde, Stelios, Storie, Todd, Sutton
