Hearts boss John McGlynn has extended the contracts of three of his promising youngsters.
Defender Kevin McHattie, 19, who has started 10 times for the first team this season, has committed himself until 2015.
Scotland U19 goalkeeper Jack Hamilton - currently on loan at Forfar Athletic - has signed a year's extension until 2014.
Scotland U21 star Dale Carrick, who played in the Europa League against Liverpool this season - has signed a new deal which keeps him at Tynecastle until 2014.
Meanwhile, Raith Rovers have extended David Smith's loan spell for a further month.