Apple isn’t backing down from its hybrid work model that will require most employees to return to the office three days a week starting in early September. Fully remote positions will be extremely limited.

“We believe that in-person collaboration is essential to our culture and our future,” said Deirdre O’Brien, senior vice president of retail and people, in a video recording viewed by The Verge. “If we take a moment to reflect on our unbelievable product launches this past year, the products and the launch execution were built upon the base of years of work that we did when we were all together in-person.”

The news comes nearly a month after Apple CEO Tim Cook sent out an email telling employees the company was rolling out a new work model that would require them to return to in-office work on Mondays, Tuesdays, and Thursdays starting in the fall.

In the wake of that announcement, Apple employees wrote a letter saying some employees had been forced to quit because of the policy, and asking Cook to change his stance. They asked that all teams be given the option to work remotely, noting “without the inclusivity that flexibility brings, many of us feel we have to choose between either a combination of our families, our well-being, and being empowered to do our best work, or being a part of Apple.”

Now, Apple is essentially denying that request, saying any remote work decisions will be made “on a case-by-case basis with any new remote positions requiring executive approval.”