diff --git a/lib/src/notifications_old.dart b/lib/src/notifications_old.dart
index 4d5b91f..0d798cc 100644
--- a/lib/src/notifications_old.dart
+++ b/lib/src/notifications_old.dart
@@ -85,7 +85,7 @@ class SlidableRatioNotification extends SlidableNotification {
   }
 
   @override
-  int get hashCode => hashValues(tag, ratio);
+  int get hashCode => Object.hash(tag, ratio);
 
   @override
   String toString() => 'SlidableRatioNotification(tag: $tag, ratio: $ratio)';