Director Paul Greengrass has decided not to direct the next installment of the Bourne film franchise because he wants to take on different challenges as a filmmaker. Greengrass, who directed star Matt Damon in the first two chapters of Universal’s Bourne Saga, will not be returning for a third directorial spin.

“My decision to not return a third time as director is simply about feeling the call for a different challenge,” imdb.com quoted Greengrass as saying in a statement Tuesday. “I will always be grateful to have been the caretaker to Jason Bourne over the course of ‘The Bourne Supremacy’ and ‘The Bourne Ultimatum.’ I’m very proud of those films and feel they express everything I most passionately believe about the possibility of making quality movies in the mainstream. My decision to not return a third time as director is simply about feeling the call for a different challenge.”

There were reports that his decision came after creative differences with Universal Pictures’ decision to develop dual scripts, but Greengrass denies it.

He said: “There’s been no disagreement with Universal Pictures. The opportunity to work with the ‘Bourne’ family again is a difficult thing to pass up, but we have discussed this together and they have been incredibly understanding and supportive. I’ve been lucky enough to have made four films for Universal, and our relationship continues. Jason Bourne existed before me and will continue, and I hope to remain involved in some capacity as the series moves on.”