diff --git a/Assets/YooAsset/Runtime/ResourceManager/Handle/HandleFactory.cs b/Assets/YooAsset/Runtime/ResourceManager/Handle/HandleFactory.cs
index 2173f888..c84d8d1b 100644
--- a/Assets/YooAsset/Runtime/ResourceManager/Handle/HandleFactory.cs
+++ b/Assets/YooAsset/Runtime/ResourceManager/Handle/HandleFactory.cs
@@ -5,7 +5,7 @@ namespace YooAsset
 {
     internal static class HandleFactory
     {
-        private static readonly Dictionary<Type, Func<ProviderOperation, HandleBase>> _handleFactory = new()
+        private static readonly Dictionary<Type, Func<ProviderOperation, HandleBase>> _handleFactory = new Dictionary<Type, Func<ProviderOperation, HandleBase>>()
         {
             { typeof(AssetHandle), op => new AssetHandle(op) },
             { typeof(SceneHandle), op => new SceneHandle(op) },