French President Emmanuel Macron and Prime Minister Edouard Philippe will announce a new government line-up on Wednesday after their clear win in parliamentary elections, the Elysee Palace says.
In line with French tradition after parliamentary elections, Philippe tendered the resignation of the government, appointed by Macron after his election as president last month.
The president then re-appointed him and asked him to form a new government, an official statement said.
Earlier on Monday, government spokesman Christophe Castaner predicted "a reshuffle which I think will not be very big, a technical reshuffle."
However, French media reported that one prominent Macron ally, territorial integration minister Richard Ferrand, would be leaving the government to head the pro-government group in the newly-elected National Assembly.
Ferrand had been hit by question marks over a 2011 rental deal that the health insurance association he then headed struck with his partner, but another Macron ally denied that the predicted move was a punishment.
"It is far from a punishment, because the most strategic position in the National Assembly will be that of president of the La Republique en Marche [LREM]," party spokesman Benjamin Griveaux told broadcaster BFMTV.
Earlier, final results of Sunday's elections published by the Interior Ministry showed Macron's La Republique en Marche (The Republic on the Move, LREM) and allies taking 350 seats in the 577-member National Assembly.
The centre-right Les Republicains and allies have 130 seats, while the Socialist Party of Macron's predecessor, Francois Hollande, have plummeted to 45 including centre-left allies.
The radical left La France Insoumise of defeated presidential candidate Jean-Luc Melenchon took 17 seats - enough to form a parliamentary bloc - while Melenchon's one-time allies in the Communist Party took 10.
But the far-right National Front took only eight seats despite winning 13 per cent of the vote in last week's first round.
That is short of the 15 needed to form a bloc, meaning that Marine Le Pen's party will have limited speaking rights and influence on the parliamentary agenda.