Postgres driver not found

[slaby93]

When trying to use Postgres as a driver, I receive info that there is no pgsql as a driver docker-compose.yml

version: '3.9'
services:
  mailcarrier:
    image: mailcarrier/mailcarrier
    restart: always
    ports:
      - '80:80'
      - '8080:8080'
      - '443:443'
    environment:
      SSL_MODE: mixed
      MAILCARRIER_AUTH_GUARD: auth:sanctum
      APP_NAME: XXXMailcarrier
      APP_ENV: local
      APP_KEY: base64:XXX
      APP_DEBUG: true
      DB_CONNECTION: pgsql
      DB_HOST: localhost
      DB_PORT: 5432
      DB_DATABASE: XXX
      DB_USERNAME: XXX
      DB_PASSWORD: XXX

Whne trying mysql it does work. But hosting separate MySQL database is too expensive for my project.