All React Native Firebase modules must be of the same version - can't use Auth

I installed RNF from starter kit provided by Invertase. I am using RNF app, database, analytics, auth. Everything worked fine until I needed the auth module. It throws an error on app startup (on Android, haven't tried iOS):

    ...\node_modules\react-native\Libraries\Core\ExceptionsManager.js:86 
You've attempted to require '@react-native-firebase/auth' version '6.0.3', however, 
the '@react-native-firebase/app' module is of a different version (6.0.0).

    All React Native Firebase modules must be of the same version. 
Please ensure they match up in your package.json file and re-run yarn/npm install.

But I checked in package.json of all the modules are of version 6.0.3, and my package.json also looks good:

{
  "name": "meditationapp",
  "version": "6.0.3",
  "private": true,
  "scripts": {
    "start": "react-native start",
    "run:android": "react-native run-android",
    "run:ios": "react-native run-ios --simulator=\"iPhone 11 Pro Max\"",
    "build:apk": "cd android && ./gradlew assembleRelease",
    "test": "jest",
    "prepare": "patch-package",
    "storybook": "start-storybook -p 7007"
  },
  "dependencies": {
    "@react-native-community/async-storage": "^1.6.2",
    "@react-native-community/netinfo": "^4.4.0",
    "@react-native-firebase/analytics": "6.0.3",
    "@react-native-firebase/app": "6.0.3",
    "@react-native-firebase/auth": "6.0.3",
    "@react-native-firebase/database": "6.0.3",
    "@typescript-eslint/eslint-plugin": "^2.3.3",
    "@typescript-eslint/parser": "^2.3.3",
    ...

Import in App.tsx:

import firebase from '@react-native-firebase/app'
import database from '@react-native-firebase/database'
import analytics from '@react-native-firebase/analytics'
import auth from '@react-native-firebase/auth'

Things I've tried:

1. Delete node_modules and run npm install
2. Installed v6.0.0 instead of 6.0.3
3. Deleted android/app/build

Can't think of anything else to try, but the error does not go away. It's working fine with analytics and database, only auth is an issue.