Francis Omondi starts ahead of Roy Okal in the defensive midfield position.
The 1-0 loss leaves us fourth with 34 points.
Alwanga has scored three goals in 13 appearances this season.
Harun swept home from his first goal for the club on 35 minutes.
The result takes our tally to 34 points, two behind leaders Sofapaka.
David Okello starts in goal ahead of Allan Owiny who is out injured.