diff --git a/jupytext-1.17.1.tar.gz b/jupytext-1.17.3.tar.gz
similarity index 35%
rename from jupytext-1.17.1.tar.gz
rename to jupytext-1.17.3.tar.gz
index d4884655a5044e698485691a4eb0997611ca43d3..fdb13cd0118186466a98d66076ea02c9c7129763 100644
Binary files a/jupytext-1.17.1.tar.gz and b/jupytext-1.17.3.tar.gz differ
diff --git a/python-jupytext.spec b/python-jupytext.spec
index 691bbce08c8c0322044b7eef75848020d3661e30..c944280eac6be9ba463916288a998ad1b737bfdc 100644
--- a/python-jupytext.spec
+++ b/python-jupytext.spec
@@ -1,11 +1,11 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-jupytext
-Version:	1.17.1
+Version:	1.17.3
 Release:	1
 Summary:	Jupyter notebooks as Markdown documents, Julia, Python or R scripts.
 License:	MIT
 URL:		https://github.com/mwouts/jupytext
-Source0:	https://files.pythonhosted.org/packages/6e/d9/b7acd3bed66c194cec1915c5bbec30994dbb50693ec209e5b115c28ddf63/jupytext-1.17.1.tar.gz
+Source0:	%{pypi_source jupytext}
 BuildArch:	noarch
 
 BuildRequires:  python3-devel
@@ -81,6 +81,13 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Thu Oct 16 2025 zhang_jian <zhang_jian7@hoperun.com> - 1.17.3-1
+- Update package to version 1.17.3
+  All the extensions supported by Jupytext now appear in the --to paragraph of jupytext --help
+  added a new function get_formats_from_notebook_path that returns the list of paired formats for a given notebook  
+  The test against jupyter-fs now installs its fs extra dependency
+  A notebook can be moved in Jupyter even if that makes it unpaired
+
 * Fri May 23 2025 Dongxing Wang <dongxing.wang_a@thundersoft.com> - 1.17.1-1
 - Update package to version 1.17.1
   Renaming files other than notebooks will not load their content