diff --git a/python-xarray.spec b/python-xarray.spec
index 26dfd2d46ab20ecbe51dc4381aeb49fa805991c2..880d00e7251ef010d8638abd0d406a1dcbbe71f7 100644
--- a/python-xarray.spec
+++ b/python-xarray.spec
@@ -1,6 +1,6 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-xarray
-Version:	2025.9.0
+Version:	2025.9.1
 Release:	1
 Summary:	N-D labeled arrays and datasets in Python
 License:	Apache-2.0
@@ -60,6 +60,11 @@ if [ -f README.txt ]; then cp -af README.txt %{buildroot}/%{_pkgdocdir}; fi
 %{_docdir}/*
 
 %changelog
+* Tue Oct 07 2025 panzhe <panzhe@kylinos.cn> - 2025.9.1-1
+- Update package to version 2025.9.1
+- DataTree.from_dict supports passing in DataArray and nested dictionary values
+- ``engine='netcdf4'`` supports reading and writing in-memory netCDF files
+
 * Fri Sep 5 2025 lilu <lilu@kylinos.cn> - 2025.9.0-1
 - Update package to version 2025.9.0
 - Support rechunking by SeasonResampler for seasonal data analysis
diff --git a/xarray-2025.9.0.tar.gz b/xarray-2025.9.1.tar.gz
similarity index 30%
rename from xarray-2025.9.0.tar.gz
rename to xarray-2025.9.1.tar.gz
index f2e3c4d6cefa3f4a482771cbc7c96fb4e9ce9907..e7342c47838f3e0a8ec7aff5bda1589e06e8552b 100644
Binary files a/xarray-2025.9.0.tar.gz and b/xarray-2025.9.1.tar.gz differ