diff --git a/Assets/YooAsset/Runtime/CacheSystem/Persistent.cs b/Assets/YooAsset/Runtime/CacheSystem/Persistent.cs
index 56010d20..799a5aa0 100644
--- a/Assets/YooAsset/Runtime/CacheSystem/Persistent.cs
+++ b/Assets/YooAsset/Runtime/CacheSystem/Persistent.cs
@@ -133,6 +133,7 @@ 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/PackageSystem/Operations/InitializationOperation.cs b/Assets/YooAsset/Runtime/PackageSystem/Operations/InitializationOperation.cs
index 5d68da0b..16bb0fc7 100644
--- a/Assets/YooAsset/Runtime/PackageSystem/Operations/InitializationOperation.cs
+++ b/Assets/YooAsset/Runtime/PackageSystem/Operations/InitializationOperation.cs
@@ -342,6 +342,7 @@ namespace YooAsset
 				{
 					PackageVersion = _loadBuildinManifestOp.Manifest.PackageVersion;
 					_impl.ActiveManifest = _loadBuildinManifestOp.Manifest;
+					_impl.FlushManifestVersionFile();
 					_steps = ESteps.PackageCaching;
 				}
 				else