Mobile Logo Not Updating

Hi there,

I updated my logo a few weeks ago and it updates on desktop. If I also make any page changes, it also updates on mobile - but despite this, my mobile logo, isn't updating. It's still showing the old one. I've checked on different devices in case it's a caching thing but it still shows the old logo on other devices that have never visited the site before too. So I'm just wondering if I have to change it somewhere else in the settings? Let me know please!

For reference if you want to check on mobile your end too, my site is: https://oncejustadream.com/ and the logo should read "Once Just a Dream".

Thanks,
Ella