diff --git a/moto-5.1.17.tar.gz b/moto-5.1.18.tar.gz
similarity index 52%
rename from moto-5.1.17.tar.gz
rename to moto-5.1.18.tar.gz
index 024c689fecfef976b6145091a729c5697624e6a1..f26ead010169f8d3dd195678eebed34e63d336b2 100644
Binary files a/moto-5.1.17.tar.gz and b/moto-5.1.18.tar.gz differ
diff --git a/python-moto.spec b/python-moto.spec
index 40332d652f2c19e4174b4f72d943dd890bee41ea..697fe788523dff6faf12026b35e31c5aadeccbc5 100644
--- a/python-moto.spec
+++ b/python-moto.spec
@@ -1,11 +1,11 @@
 %global _empty_manifest_terminate_build 0
 Name:		python-moto
-Version:	5.1.17
+Version:	5.1.18
 Release:	1
 Summary:	A library that allows your python tests to easily mock out the boto library
 License:	Apache-2.0
 URL:		https://github.com/spulec/moto
-Source0:    https://files.pythonhosted.org/packages/source/m/moto/moto-%{version}.tar.gz
+Source0:    https://files.pythonhosted.org/packages/e3/6a/a73bef67261bfab55714390f07c7df97531d00cea730b7c0ace4d0ad7669/moto-5.1.18.tar.gz
 BuildArch:	noarch
 
 %description
@@ -65,6 +65,11 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Mon Dec 1 2025 wanggang <wanggang1@kylinos.cn> - 5.1.18-1
+- Update package version to 5.1.18
+- Introduces two methods for enabling and disabling IAM authentication:from moto.core import disable_iam_authentication, enable_iam_authentication.
+- They behave the same as the `@set_initial_no_auth_action_count`-decorator, but can be used as a fixture/context manager
+
 * Thu Nov 20 2025 lvwq <lvwenqiang@kylinos.cn> - 5.1.17-1
 - Update to 5.1.17