France's Esteban Ocon announced Tuesday that he had extended his contract with Force India for next season.
"It's official, and I can say that I'm very happy to stay with @forceindiaF1 @mercedesamg for 2018!" the 21-year-old tweeted.
Ocon will again be partnered at Force India next year by Mexican Sergio Perez, who extended his own contract on Sunday.
Perez and Ocon have had their differences and this season they became embroiled in a row over team orders, and collided at both Azerbaijan and Belgium, before burying the hatchet.
Perez is Force India's most successful driver to date with four podiums.