Authentication error using phpmyadmin and docker-compose

I’m trying to user docker-compose for mysql and phpmyadmin, but I’m getting an authentication error when trying to log in to phpmyadmin.

I’ve tried several configurations on the yaml file, but without any success.

version: '3'

services:

  db:
    image: mysql
    command: --default-authentication-plugin=mysql_native_password
    restart: always
    environment:
      MYSQL_DATABASE: mydb
      MYSQL_USER: root
      MYSQL_PASSWORD: admin
      MYSQL_ROOT_PASSWORD: admin
    volumes:
      - my-db:/var/lib/mysql

  phpmyadmin:
    image: phpmyadmin/phpmyadmin:latest
    links:
      - db
    ports:
      - 8080:80
    restart: always
    environment:
      PMA_USER: root
      PMA_PASSWORD: admin

    volumes:
      my-db: {}

When I try logging in to phpmyadmin i get the following errors:

mysqli_real_connect(): The server requested authentication method unknown to the client [caching_sha2_password] mysqli_real_connect(): (HY000/2054): The server requested authentication method unknown to the client

I tried to change the yml to:

version: '3'

  services:

    db:
      image: mysql:57
      restart: always
      environment:

After this, the container no longer starts, and it gives the following message:

docker_db_1 exited with code 1