Deprecated Pimple container on M1 Mac

I recently moved my grav website to a M1 Mac and I’m getting PHP errors now when I run it locally. Here are the errors:

Deprecated: Return type of Pimple\Container::offsetExists($id) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Users/joshc/grav/joshsjournal/vendor/pimple/pimple/src/Pimple/Container.php on line 133

Deprecated: Return type of Pimple\Container::offsetGet($id) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Users/joshc/grav/joshsjournal/vendor/pimple/pimple/src/Pimple/Container.php on line 98

Deprecated: Return type of Pimple\Container::offsetSet($id, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Users/joshc/grav/joshsjournal/vendor/pimple/pimple/src/Pimple/Container.php on line 79

Deprecated: Return type of Pimple\Container::offsetUnset($id) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /Users/joshc/grav/joshsjournal/vendor/pimple/pimple/src/Pimple/Container.php on line 143

I installed PHP via Homebrew, current version 8.1. I’m seeing this warning on every page and can’t log in to the site. Has anybody run into this? Thanks.

Does Grav officially support 8.1? Wasn’t it just released a few days ago?

Alright, good to know. I switched to php 8.0 and I’m not receiving any errors.

https://stackoverflow.com/a/59458819