MacBook photos & iCloud

How can I delete photos from my MacBook to save space while keeping the ones I have on iCloud? I have read you cannot delete photos on MacBook without them being deleted on iCloud. I want to update my MacBook, and the best way to gain space is deleting my photos from my MacBook. So, I want to know, if there is a way, to delete my photos off the Photos app but retain them on iCloud?

Thank you.