TRPCClientError: fetch failed, using Node 18 in Docker

version: "3.9"
services:
  retro:
    image: ghcr.io/***/retro:latest
    ports:
      - "${PORT}:${PORT}"
    env_file:
      - .env
    restart: unless-stopped
    depends_on:
      - navis
    volumes:
      - "./config:/app//apps/retro/config"
  navis:
    image: ghcr.io/***/navis:latest
    env_file:
      - .env
    restart: unless-stopped

networks:
  default:
    external: true
    name: internal-network

export const MailerService = createTRPCProxyClient<AppRouter>({
  links: [
    httpBatchLink({
      url: ["navis", "3030"].join(":"),
    }),
  ],
});