diff --git a/Assets/YooAsset/Runtime/CacheSystem/PersistentManager.cs b/Assets/YooAsset/Runtime/CacheSystem/PersistentManager.cs
index a970b9e..fc5f5eb 100644
--- a/Assets/YooAsset/Runtime/CacheSystem/PersistentManager.cs
+++ b/Assets/YooAsset/Runtime/CacheSystem/PersistentManager.cs
@@ -181,6 +181,7 @@ namespace YooAsset
         /// </summary>
         public void SaveSandboxPackageVersionFile(string version)
         {
+            YooLogger.Log($"Save package version : {version}");
             string filePath = GetSandboxPackageVersionFilePath();
             FileUtility.WriteAllText(filePath, version);
         }
diff --git a/Assets/YooAsset/Runtime/ResourcePackage/Operation/InitializationOperation.cs b/Assets/YooAsset/Runtime/ResourcePackage/Operation/InitializationOperation.cs
index f7a7fa1..e67993c 100644
--- a/Assets/YooAsset/Runtime/ResourcePackage/Operation/InitializationOperation.cs
+++ b/Assets/YooAsset/Runtime/ResourcePackage/Operation/InitializationOperation.cs
@@ -332,6 +332,7 @@ namespace YooAsset
                 {
                     PackageVersion = _loadBuildinManifestOp.Manifest.PackageVersion;
                     _impl.ActiveManifest = _loadBuildinManifestOp.Manifest;
+                    _impl.FlushManifestVersionFile(); //注意：解压内置清单并加载成功后保存该清单版本。
                     _steps = ESteps.PackageCaching;
                 }
                 else
diff --git a/Assets/YooAsset/Runtime/ResourcePackage/Operation/UpdatePackageManifestOperation.cs b/Assets/YooAsset/Runtime/ResourcePackage/Operation/UpdatePackageManifestOperation.cs
index 1db5774..0019b21 100644
--- a/Assets/YooAsset/Runtime/ResourcePackage/Operation/UpdatePackageManifestOperation.cs
+++ b/Assets/YooAsset/Runtime/ResourcePackage/Operation/UpdatePackageManifestOperation.cs
@@ -63,7 +63,6 @@ namespace YooAsset
             TryLoadCacheManifest,
             DownloadManifest,
             LoadCacheManifest,
-            CheckDeserializeManifest,
             Done,
         }