Holders Hibernian could face Hearts in the Scottish Cup following the draw for the fifth round.
East Fife Football
Nick Paterson's first-half goal sees East Fife overcome League One leaders Livingston in the Scottish Cup fourth round.
Airdrieonians close in on second-placed Alloa, while Stenhousemuir leapfrog Stranraer at the bottom of Scottish League One.
Shaun Byrne's late winner extends Livingston's lead in Scottish League One to nine points as Alloa move up to second.