The midfielder has along with Mathieu Valbuena been linked with a move away from the Stade Velodrome due to a lack of first-team action.
Ben Arfa has been linked with Everton and Manchester United.
“The issue for the duo of Ben Arfa and Valbuena was game time and I understand their disappointment but they do not get that,” Deschamps told L’Equipe.
“(But) they like me, they have pace and they have given a boost to this team.
“They will stay. I have no doubt at all about their involvement.”