Erro " password authentication failed for user "root" (SQLSTATE 28P01)"

Mesmo seguindo os passos do vídeo recebo o seguinte erro

[error] failed to initialize database, got error failed to connect to `host=localhost user=root database=root`: server error (FATAL: password authentication failed for user "root" (SQLSTATE 28P01))
2022/04/19 18:19:40 Erro ao conectar com o banco de dados
panic: Erro ao conectar com o banco de dados

Abaixo segue meu codigo

version: '3'
services:
  postgres:
    image: "postgres"
    environment:
      - POSTGRES_USER=root
      - POSTGRES_PASSWORD=root
      - POSTGRES_DB=root      
    ports:
      - "5432:5432"
    volumes:
      - ./migration/docker-database-initial.sql:/docker-entrypoint-initdb.d/docker-database-initial.sql   

  pgadmin-compose:
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: "gabriel@gmail.com"
      PGADMIN_DEFAULT_PASSWORD: "123456"
    ports:
      - "54321:80"
    depends_on:
      - postgres

package database

import (
    "log"

    "gorm.io/driver/postgres"
    "gorm.io/gorm"
)

var (
    DB *gorm.DB
    err error
)

func ConectaComBancoDeDados() {
    stringDeConexao := "host=localhost user=root password=root dbname=root port=5432 sslmode=disable"
    DB, err = gorm.Open(postgres.Open(stringDeConexao))
    if err != nil {
        log.Panic("Erro ao conectar com o banco de dados")
    }
}