diff --git a/lib/src/models/undefined.dart b/lib/src/models/undefined.dart
index 1f60a7d..978ec7c 100644
--- a/lib/src/models/undefined.dart
+++ b/lib/src/models/undefined.dart
@@ -1,7 +1,4 @@
-import 'package:meta/meta.dart';
-
 /// Internal model to distinguish between null and not set value
-@internal
 final class Undefined {
   const Undefined();
 }