It follows their narrow 20 -24 defeat by the Leicester Tigers last Saturday.
Phil Dollman and Jack Nowell both return for the first time this season, taking over from Ceri Sweeney and Jack Arnott.
Two changes have been made to the starting line-up with Ben Moon coming in for Carl Rimmer, while Damian Welch comes in instead of Ryan Caldwell.
Plymouth Sessions won't go ahead next year
Devon man jailed after Bristol rape
Body found in Bideford fire investigation
Royal Clarence Hotel redevelopment to start
Road closures for Tar Barrels event
