Dependency issue

[DaveSMBit]

I got the following error: Problem 1 - morrislaptop/firestore-php[v2.2.0, ..., v2.2.2] require kreait/firebase-php ^4.15 -> found kreait/firebase-php[4.15.0, ..., 4.x-dev] but it conflicts with your root composer.json require (^5.17). - Root composer.json requires morrislaptop/firestore-php ^2.2 -> satisfiable by morrislaptop/firestore-php[v2.2.0, v2.2.1, v2.2.2].