The 24-year-old player, an Angolan international, was loaned for one season, with the Serbian club reserving an option to buy at the end of the loan.
Depú joined the Barcelona club in 2022/23, coming from Petro de Luanda, but saw his development hampered by a serious injury, which delayed his establishment.
Even so, last season, the forward took part in 16 games and scored three goals, and has already been called up for three matches this season.
Recently, Depú was removed from the national team's double qualifying round for the African Cup of Nations (CAN), for having breached the team's code of conduct.