diff --git a/lib/src/cache_manager.dart b/lib/src/cache_manager.dart
index b0becbe..c9cc4d7 100644
--- a/lib/src/cache_manager.dart
+++ b/lib/src/cache_manager.dart
@@ -10,7 +10,6 @@ typedef ExpirationCallback = void Function(String key);
 /// CacheManager class to handle caching operations with optional TTL (Time-To-Live).
 /// It also supports encryption, backup, and restore functionalities.
 class CacheManager {
-  static final CacheManager _instance = CacheManager._internal();
   static Database? _database;
   final encrypt.Encrypter _encrypter =
       encrypt.Encrypter(encrypt.AES(encrypt.Key.fromLength(32)));
@@ -130,6 +129,16 @@ class CacheManager {
     await db.delete('cache');
   }
 
+  /// Deletes all the expired cache entries based on ttl.
+  ///
+  /// Returns the number of entries deleted.
+  Future<int> deleteExpiredCache() async {
+    final db = await database;
+    return await db.delete('cache',
+        where: 'ttl != NULL && ttl < ?',
+        whereArgs: [DateTime.now().millisecondsSinceEpoch]);
+  }
+
   /// Backs up cache data to a specified file path.
   Future<void> backupCache(String backupPath) async {
     final db = await database;