diff --git a/mastodon/.env.production b/mastodon/.env.production
index 81d72e3..e1e4de6 100644
--- a/mastodon/.env.production
+++ b/mastodon/.env.production
@@ -30,7 +30,7 @@ ACTIVE_RECORD_ENCRYPTION_PRIMARY_KEY=24923f2e2296745137e79deb1bdaecf221406278ae7
 # Registrations
 # -------------
 # Single user mode will disable registrations and redirect frontpage to the first profile
-SINGLE_USER_MODE=false
+SINGLE_USER_MODE=true
 
 # Sending mail
 # ------------