diff --git a/docker-compose.yml b/docker-compose.yml
index 64762c0..379c058 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -317,7 +317,7 @@ services:
       - ENABLE_DB_WAL=true
       - INVITATIONS_ALLOWED=false
       - SHOW_PASSWORD_HINT=false
-      - SIGNUPS_ALLOWED=true
+      - SIGNUPS_ALLOWED=false
       - SIGNUPS_VERIFY=false
       - SMTP_PORT=587
       - SMTP_SSL=true