diff --git a/Sources/YMFF/FeatureFlagResolver/Store/UserDefaultsStore.swift b/Sources/YMFF/FeatureFlagResolver/Store/UserDefaultsStore.swift
index 8176fad..19895c0 100644
--- a/Sources/YMFF/FeatureFlagResolver/Store/UserDefaultsStore.swift
+++ b/Sources/YMFF/FeatureFlagResolver/Store/UserDefaultsStore.swift
@@ -28,6 +28,10 @@ final public class UserDefaultsStore {
         self.userDefaults = userDefaults
     }
     
+    deinit {
+        userDefaults.synchronize()
+    }
+    
 }
 
 // MARK: - SynchronousMutableFeatureFlagStore
@@ -48,10 +52,6 @@ extension UserDefaultsStore: SynchronousMutableFeatureFlagStore {
         userDefaults.removeObject(forKey: key)
     }
     
-    public func saveChangesSync() {
-        userDefaults.synchronize()
-    }
-    
 }
 
 #endif