Brittain Stone, a veteran of Us Weekly for 14 years, is leaving his post. Adweek reports that Stone will be replaced by Jennifer Halper, formerly the magazine’s Deputy Photo Editor.

It’s not known why Stone left, but sources told Adweek that he didn’t get along with Mike Steele, Us Weekly’s Editor-in-Chief. Steele was just given a contract extension by Jann Wenner in October.