The 'Keeping Up with the Kardashians' star, who lashed out at the US chat show host last August, accused her of being two-faced, reported Us magazine.
"Great night @kimkardashian @shellibird1 @christiebrinkley @katiecouric! #hamptonslife," Kris Jenner wrote via Instagram.
Alongside the caption, Jenner posted a picture of the famous girls and friend Shelli Azoff dolled up for the holiday.
Supermodel and Hamptons queen Christie Brinkley stood between Kanye West's wife, 33, and Couric.
This reunion marks the first time the duo have been spotted together since the reality TV star slammed Couric, 57, for sending a set of Barney's New York pyjamas to her daughter North after she was born in June 2013.