Dean Cornelius and David Devine have signed new two-year contracts with the club.
The youth academy products, who have both already made first-team appearances, have extended their stays until the summer of 2023.
“We hope both boys take this opportunity to push hard towards getting in our first team,”manager Graham Alexander said.
“They’re both talented and motivated lads and it’s a big year for them.
“They’re at an age where they have to be competing with the senior pros and I believe they have the right mentality to do that.
“We look forward to helping them with this challenge.”
Cornelius, 20, made his debut for his boyhood club in May 2019 against Livingston, and followed it up with an appearance away to Dundee United in late 2020.
Recruited from Hibernian’s academy in the summer of 2018, he has made his appearances in central midfield for the first team, but has also featured at right-back at reserve level.
Central defender Devine made his debut in the same fixture against Livingston in May 2019 and has been involved in a large number of matchday squads since.