dream3 Apps has an alpha/beta/stable channel for each of the apps it offers. The version you're likely seeing there is in the alpha/beta channel, and is why you're likely not able to update to it just yet.
You should be able to get the update faster through Play Store itself. If it prompts you to update through it, it's completely fine to do it.
To remove the annoyance of Aurora Store bugging you about it, you can blacklist Play Store and Play Services within Aurora Store settings.
You'll find that by pressing on the top left of the app to bring up the sidebar, and then pressing "blacklist manager". Check those apps on there, and you'll be good to go, Aurora Store won't bug you to update them going forward.