diff --git a/lib/helpers/serialization/base_serialization_helper.dart b/lib/helpers/serialization/base_serialization_helper.dart
index 4be764d..b49fcee 100644
--- a/lib/helpers/serialization/base_serialization_helper.dart
+++ b/lib/helpers/serialization/base_serialization_helper.dart
@@ -105,7 +105,7 @@ abstract class BaseSerializationHelper<T extends SerializableElement> {
     await _loadCache();
 
     // Insert or replace the element
-    _cache.where((element) => !isToReplace(element)).toList();
+    _cache = _cache.where((element) => !isToReplace(element)).toList();
     _cache.add(newEl);
 
     _cache.sort();