The 23-year-old actress who stars in the ABC show as Hanna Marin took to Instagram to express her discontent with the photo.
"Saw this floating around....hope it's not the poster. Our faces in this were from 4 years ago.....and we all look ridiculous. Way too much photo shop. We all have flaws. No one looks like this. It's not attractive," Benson wrote on Instagram.
The poster in question features Benson and her co-stars Lucy Hale, Shay Mitchell and Troian Bellisario dressed in red and severely airbrushed.
Bellisario, who plays Spencer Hastings on the show, supported Benson's claim on Twitter.
"Wow @ashbenzo I couldn't agree more. Very cool concept as always. But aren't we attractive enough…," she wrote.
Pretty Little Liars returns for the second half of season 4 on January 7, 2014