Hibernian defeated Raith Rovers 2-0 at Easter Road in one of three Ladbrokes Championship games played on Saturday.
James Keatings broke the deadlock midway through the first half and Jason Cummings added the second early in the second half.
Morton earned their first win as Thomas O'Ware's 72nd-minute goal at the Indodrill Stadium inflicted a fourth straight defeat on Alloa.
St Mirren and Livingston drew 1-1 in Paisley, just four days after Livi won there in the League Cup. Paul McMullan scored early on for Saints but Liam Buchanan levelled from the penalty spot before half-time.