updated 05/10/2011 AT 10:00 AM ET
•originally published 05/10/2011 AT 12:15 PM ET
There’s going to be a shakeup on the Upper East Side!
Although Gossip Girl has been renewed for a fifth season, not all its fashionable characters will be back: Taylor Momsen, who plays Jenny Humphrey, and Jessica Szohr, who plays Vanessa Abrams, will not return as series regulars, PEOPLE can confirm.
The news may not come as a total shocker – Momsen, 17, hasn’t appeared on many recent episodes, and in season 4 the character played by Szohr, 26, left town.
Still, both stars may make guest appearances in season 5 – and Momsen fans can check her out when she performs with her rock band, The Pretty Reckless.