Cowdenbeath claimed their first Championship win of the season on Saturday, beating Queen of the South 2-1 at Central Park.
On-loan strikers Kudus Oyenuga and Calum Gallagher scored in the first half and Jimmy Nicholl's men held on despite Derek Lyle pulling one back.
Dumbarton leapfrogged Alloa with a 3-1 win at the Bet Butler Stadium. Archie Campbell, Jordan Kirkpatrick and Colin Nish got the goals for Ian Murray's men before Stephen Simmons claimed an injury-time consolation.
Raith Rovers and Falkirk played out a 0-0 draw at Stark's Park.
Leaders Hearts welcome Livingston to Tynecastle on Sunday, live on BBC ALBA at 4.05pm, and second-placed Rangers entertain Hibernian on Monday, live on BT Sport at 7.45pm.