It's now two 1-0 defeats for Hearts in a matter of days as they warmed up for their Europa Conference League opener with another one.
Livingston were deserved winners at the Tony Macaroni and should have won by a bigger margin. Craig Gordon was easily the busier of the two goalkeepers with Livi's Shamal George barely troubled despite huffing and puffing from the Jambos, who have surrendered third place in the Premiership table to Aberdeen despite a late, late Ross County equaliser.
There was early chance for debutant Stephen Humphrys. Gary Mackay-Steven went down the left and floated a ball to the back post, where the on-loan Wigan man was arriving. However, the ball was slightly too high for him to volley home on the stretch and he sent it high and wide from close range. Barrie McKay then slipped a clever first-time ball to present Jorge Grant with a great chance. However, the midfielder's finished wasn't accurate enough and he sent a bending effort wide of goal.