diff --git a/python-ubelt.spec b/python-ubelt.spec
index a571bff86a115ec083ac68dd2a2430d63ac9584f..573e3d7661d1cf5bcd216396bf9220442692b2e5 100644
--- a/python-ubelt.spec
+++ b/python-ubelt.spec
@@ -1,13 +1,13 @@
 %global pypi_name ubelt
 
 Name:		python-%{pypi_name}
-Version:	1.3.6
-Release:	1
+Version:        1.4.0
+Release:        1
 Summary:	 A Python utility belt containing simple tools, a stdlib like feel, and extra batteries.
 
 License:	Apache 2
 URL:    	https://github.com/Erotemic/ubelt
-Source0:	https://files.pythonhosted.org/packages/1a/cd/8ef3625e5cc5dad50d64cd6a2486fc7adc667d8728ae6deaa29ec49943e0/ubelt-1.3.6.tar.gz
+Source0:        https://files.pythonhosted.org/packages/a2/24/cec4c09e785f5fdf0b1c7f930ab30710090dabf746b9beb45296d5c55390/ubelt-1.4.0.tar.gz
 BuildArch:	noarch
 
 %description
@@ -42,6 +42,12 @@ Ubelt is a lightweight library of robust, tested, documented, and simple functio
 %{python3_sitelib}/ubelt/
 
 %changelog
+* Sat Oct 11 2025 Yu Peng <yupeng@kylinos.cn> - 1.4.0-1
+- Upgrade to 1.4.0 
+  * Removed support for 3.6 and 3.7
+  * ub.hash_data can how hash dataclasses by default
+  * Add experimental support for interpreter backend in Executor.
+
 * Mon Jul 29 2024 dongqi <dongqi@kylinos.cn> - 1.3.6-1
 - Update package to version 1.3.6
   Added workarounds for copy / symlinks via ub.Path and ub.symlink on pypy
diff --git a/ubelt-1.3.6.tar.gz b/ubelt-1.3.6.tar.gz
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diff --git a/ubelt-1.4.0.tar.gz b/ubelt-1.4.0.tar.gz
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