diff --git a/pysmi-1.5.6.tar.gz b/pysmi-1.5.6.tar.gz
deleted file mode 100644
index bdaf41eda3d28a24d8b26f8c49413a937280ecf6..0000000000000000000000000000000000000000
Binary files a/pysmi-1.5.6.tar.gz and /dev/null differ
diff --git a/pysmi-1.5.7.tar.gz b/pysmi-1.5.7.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..329fe33401727fbeb2e152d30c93063f08fc8d79
Binary files /dev/null and b/pysmi-1.5.7.tar.gz differ
diff --git a/python-pysmi.spec b/python-pysmi.spec
index e93f4bdc2b9cd0e4849f5d61122d5f5294c9c6aa..ff9617a9820052c623ed4982e9bfe014ca6c1433 100644
--- a/python-pysmi.spec
+++ b/python-pysmi.spec
@@ -1,6 +1,6 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-pysmi
-Version:	1.5.6
+Version:	1.5.7
 Release:	1
 Summary:	SNMP SMI/MIB Parser
 License:	BSD-2-Clause
@@ -72,6 +72,10 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Tue Nov 12 2024 liutao1 <liutao1@kylinos.cn> - 1.5.7-1
+- Update package to version 1.5.7
+  Various improvements in MIB parsing, including better DEFVAL handling, symbol name generation, and more.
+
 * Thu Oct 31 2024 jinshuaiyu <jinshuaiyu@kylinos.cn> - 1.5.6-1
 - Update package to version 1.5.6
 - Improved DISPLAY-HINT support.