Chris Hamilton has joined Dumbarton on loan.
The Scotland U21 cap makes the move to the League One side until January 2020.
19-year-old Chris made his Hearts first team debut on the final day of the 2018/19 season at Kilmarnock, and spent last season on loan at Cowdenbeath where he helped the Fife finish fourth in the table.
Meanwhile, 18-year-old full back Sean Ward has joined Lowland League side Gala Fairydean Rovers on a season-long loan.