Protesters shout during a demonstration in Lyon, central France, Tuesday, Dec. 17, 2019. An official says French President Emmanuel Macron is ready to make changes to his unpopular pension reform plans. File photo: AP Photo/Laurent Cipriani.

PARIS — French President Emmanuel Macron is ready to make changes to his unpopular pension reform plans, an official said Wednesday, one day after hundreds of thousands of protesters took to the streets across the country .

Prime Minister Edouard Philippe was to hold key, separate negotiations later Wednesday with unions and employers’ organizations on potential amendments to the reform package.

“The President … won’t abandon the project,” an aide to Macron said, adding that while he won’t change the nature of the reform he is “willing to improve it.”

The official was speaking anonymously in accordance with the presidency’s customary practices.

The government didn’t rule out potential changes to its plan to delay the age of retirement on full pension — which is the main cause of discontent — by two years, from 62 to 64.