Unable to disable signups for Vaultwarden

Question

Unable to disable Vaultwarden account creation.

Vaultwarden is running correctly, except disabling the registration. I modified the docker-composer.yml like the following :

version: '3'

services:
  vaultwarden:
    image: vaultwarden/server:latest
    restart: always
    ports:
      - "8081:80"  # Use a different external port, like 8081
    environment:
      - DOMAIN=https://example.com
      - SIGNUPS_ALLOWED=false
    volumes:
      - ./vw-data:/data

Then I ran :

docker-compose restart vaultwarden

But the account creaton button still exist.

Vaultwarden is an Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs.