diff --git a/docker-compose.yml b/docker-compose.yml
index 496a2d1..e1bcd2d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -42,9 +42,9 @@ services:
       GITEA__oauth2_client__REGISTER_EMAIL_CONFIRM: false
       GITEA__oauth2_client__ENABLE_AUTO_REGISTRATION: true
       GITEA__oauth2_client__ACCOUNT_LINKING: login
-      GITEA__oauth2_client__USERNAME: preferred_username
+      GITEA__oauth2_client__USERNAME: nickname
       GITEA__openid__ENABLE_OPENID_SIGNIN: false
-      GITEA__service__DISABLE_REGISTRATION: true
+      GITEA__service__DISABLE_REGISTRATION: false
       GITEA__service__ALLOW_ONLY_EXTERNAL_REGISTRATION: true
       GITEA__service__DEFAULT_ALLOW_CREATE_ORGANIZATION: false
       GITEA__repository__MAX_CREATION_LIMIT: 0