Typescript: firestore: FirestoreReducer.Reducer; No overload matches this call.

[SamPoate]

Hi all, current issue lies below. Thanks in advance for the help.

What is the current behavior?

(property) firestore: Reducer<FirestoreReducer.Reducer, any>
No overload matches this call.
  Overload 1 of 3, '(reducers: ReducersMapObject<AppState, any>): Reducer<CombinedState<AppState>, AnyAction>', gave the following error.
    Type 'typeof firestoreReducer' is not assignable to type 'Reducer<Reducer, any>'.
      Types of parameters 'state' and 'state' are incompatible.
        Type 'Reducer | undefined' is not assignable to type 'object'.
          Type 'undefined' is not assignable to type 'object'.
  Overload 2 of 3, '(reducers: ReducersMapObject<AppState, AnyAction>): Reducer<CombinedState<AppState>, AnyAction>', gave the following error.
    Type 'typeof firestoreReducer' is not assignable to type 'Reducer<Reducer, AnyAction>'.
      Types of parameters 'state' and 'state' are incompatible.
        Type 'Reducer | undefined' is not assignable to type 'object'.
          Type 'undefined' is not assignable to type 'object'.ts(2769)
rootReducer.ts(13, 5): The expected type comes from property 'firestore' which is declared here on type 'ReducersMapObject<AppState, any>'
rootReducer.ts(13, 5): The expected type comes from property 'firestore' which is declared here on type 'ReducersMapObject<AppState, AnyAction>'

What is the expected behavior?

Which version of redux-firestore are you using? What about other dependencies?
"react-redux-firebase": "^3.7.0",
"redux-firestore": "^0.14.0",
"@reduxjs/toolkit": "^1.4.0",

Which environments/browsers are affected by this issue? Did this work in previous versions or setups?
N/A

Minimal demo to reproduce issue (using codesandbox or similar)

import { Reducer, combineReducers } from '@reduxjs/toolkit';
import { TypedUseSelectorHook, useSelector } from 'react-redux';
import {
    firebaseReducer,
    FirebaseReducer,
    FirestoreReducer
} from 'react-redux-firebase';
import { firestoreReducer } from 'redux-firestore';
import { IProfile } from '../types';

type AppState = {
    firebase: FirebaseReducer.Reducer<IProfile>;
    firestore: FirestoreReducer.Reducer;
};

const rootReducer: Reducer<AppState> = combineReducers<AppState>({
    firebase: firebaseReducer,
    firestore: firestoreReducer
});

export type RootState = ReturnType<typeof rootReducer>;
export const useTypedSelector: TypedUseSelectorHook<RootState> = useSelector;

export default rootReducer;