The 2023-2024 version was just approved on October 3. Today is October 8. I doubt that it's arrived yet. Here's a link from the Novavax company website which should be helpful as soon as they update it.
https://us.novavaxcovidvaccine.com/
I got my first two at the local Safeway here in Northern California. I'll be calling them this week to see when the new version will be available. I looked at Vaccines.gov last week and it showed CVS and Walgreens near me, but it didn't specify whether it's the new version or not.
So maybe check with the location where you got the first ones. Just be sure to specify that you want the updated version. I'm hoping that it will be shipping sooner rather than later. I want to get the new one on board ASAP, too.