diff --git a/python-dotenv.spec b/python-dotenv.spec
index f187da4b98b4b00b1a741026fac39017825c0b05..fdeb3f1d50097c46f5614976a76a055697aece3c 100644
--- a/python-dotenv.spec
+++ b/python-dotenv.spec
@@ -1,14 +1,22 @@
 %global _empty_manifest_terminate_build 0
+%undefine _python_dist_allow_version_zero
 Name:		python-dotenv
-Version:	1.1.1
+Version:	0.9.9
 Release:	1
 Summary:	Read key-value pairs from a .env file and set them as environment variables
 License:	BSD-3-Clause
 URL:		https://github.com/theskumar/python-dotenv
-Source0:	%{pypi_source python_dotenv}
+Source0:	https://files.pythonhosted.org/packages/source/p/python_dotenv/python_dotenv-%{version}.tar.gz
 BuildArch:	noarch
 
 
+BuildRequires: python3-pip
+BuildRequires: python3-wheel
+BuildRequires: python3-build
+BuildRequires: python3-hatchling
+BuildRequires:	python3-devel
+BuildRequires:	python3-setuptools
+
 %description
 Python-dotenv reads key-value pairs from a .env file and can set them as environment variables. It helps in the development of applications following the 12-factor principles.
 
@@ -16,8 +24,6 @@ Python-dotenv reads key-value pairs from a .env file and can set them as environ
 Summary:	Read key-value pairs from a .env file and set them as environment variables
 Provides:	python-dotenv = %{version}-%{release}
 Requires:	python3-click
-BuildRequires:	python3-devel
-BuildRequires:	python3-setuptools
 
 %description -n python3-dotenv
 Python-dotenv reads key-value pairs from a .env file and can set them as environment variables. It helps in the development of applications following the 12-factor principles.
@@ -32,11 +38,29 @@ Development documents and examples for python-dotenv.
 %prep
 %autosetup -n python_dotenv-%{version} -p1
 
+# Fix setuptools_scm version issue
+if [ -f pyproject.toml ]; then
+  sed -i '/^version *=/d' pyproject.toml
+  sed -i '/^\[project\]/a version = "%{version}"' pyproject.toml
+  sed -i '/dynamic *= *\[.*version.*\]/d' pyproject.toml
+  if grep -q '^\[tool\.setuptools_scm\]' pyproject.toml; then
+    sed -i '/^\[tool\.setuptools_scm\]/,/^\[/ {/^write_to *=/d}' pyproject.toml
+    sed -i '/^\[tool\.setuptools_scm\]/a fallback_version = "%{version}"' pyproject.toml
+  fi
+fi
+
 %build
-%py3_build
+export SETUPTOOLS_SCM_PRETEND_VERSION="%{version}"
+%pyproject_build
 
 %install
-%py3_install
+export PYTHONDONTWRITEBYTECODE=1
+
+# Clean __pycache__ directories and .pyc/.pyo files
+find %{buildroot} -name '*.py[co]' -delete
+find %{buildroot} -type d -name '__pycache__' -exec rm -rf {} + 2>/dev/null || true
+export SETUPTOOLS_SCM_PRETEND_VERSION="%{version}"
+%pyproject_install
 install -d -m755 %{buildroot}/%{_pkgdocdir}
 if [ -d doc ]; then cp -arf doc %{buildroot}/%{_pkgdocdir}; fi
 if [ -d docs ]; then cp -arf docs %{buildroot}/%{_pkgdocdir}; fi
@@ -75,6 +99,9 @@ find %{buildroot} -type f -exec file {} ';' | grep "\<ELF\>" | awk -F ':' '{prin
 %{_docdir}/*
 
 %changelog
+* Thu Nov 27 2025 zhangzeyang0718 <zhangzeyang@kylinos.cn> - 0.9.9-1
+- Update package to version 0.9.9
+
 * Mon Aug 18 2025 zhang_wenyu <zhang_wenyu@hoperun.com> - 1.1.1-1
 - Update to 1.1.1:
   * Ensure find_dotenv work reliably on python 3.13
diff --git a/python_dotenv-0.9.9.tar.gz b/python_dotenv-0.9.9.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/python_dotenv-1.1.1.tar.gz b/python_dotenv-1.1.1.tar.gz
deleted file mode 100644
index a441dece498c1859517d775880092556aeb21718..0000000000000000000000000000000000000000
Binary files a/python_dotenv-1.1.1.tar.gz and /dev/null differ