diff --git a/modules/services/forgejo.nix b/modules/services/forgejo.nix
index a747a70..351212b 100644
--- a/modules/services/forgejo.nix
+++ b/modules/services/forgejo.nix
@@ -17,7 +17,12 @@
         HTTP_PORT = 3000;
       };
 
-      service.DISABLE_REGISTRATION = true;
+      service = {
+        DISABLE_REGISTRATION = true;
+        ALLOW_ONLY_EXTERNAL_REGISTRATION = true;
+        SHOW_REGISTRATION_BUTTON = false;
+        ENABLE_PASSWORD_SIGNIN_FORM = false;
+      };
     };
   };