diff --git a/build-with-cython3.patch b/build-with-cython3.patch
new file mode 100644
index 0000000..d0ab151
--- /dev/null
+++ b/build-with-cython3.patch
@@ -0,0 +1,17 @@
+Index: PyYAML-6.0.1/setup.py
+===================================================================
+--- PyYAML-6.0.1.orig/setup.py
++++ PyYAML-6.0.1/setup.py
+@@ -82,7 +82,11 @@ if 'sdist' in sys.argv or os.environ.get
+     with_cython = True
+ try:
+     from Cython.Distutils.extension import Extension as _Extension
+-    from Cython.Distutils import build_ext as _build_ext
++    try:
++         # try old_build_ext from Cython > 3 first, until we can dump it entirely
++         from Cython.Distutils.old_build_ext import old_build_ext as _build_ext
++    except ImportError:
++        from Cython.Distutils import build_ext as _build_ext
+     with_cython = True
+ except ImportError:
+     if with_cython:
diff --git a/python-PyYAML.changes b/python-PyYAML.changes
index 82e5707..6151804 100644
--- a/python-PyYAML.changes
+++ b/python-PyYAML.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Jul  1 10:52:46 UTC 2024 - Dirk Müller <dmueller@suse.com>
+
+- add build-with-cython3.patch from 6.0.2rc1 to build with
+  cython3 (needed for python 3.13+)
+
 -------------------------------------------------------------------
 Mon Feb 26 03:18:33 UTC 2024 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python-PyYAML.spec b/python-PyYAML.spec
index 8071788..7b2f3cf 100644
--- a/python-PyYAML.spec
+++ b/python-PyYAML.spec
@@ -24,7 +24,8 @@ Summary:        YAML parser and emitter for Python
 License:        MIT
 URL:            https://github.com/yaml/pyyaml
 Source:         https://files.pythonhosted.org/packages/source/P/PyYAML/PyYAML-%{version}.tar.gz
-BuildRequires:  %{python_module Cython with %python-Cython < 3}
+Patch1:         build-with-cython3.patch
+BuildRequires:  %{python_module Cython}
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module wheel}
@@ -51,6 +52,7 @@ configuration files to object serialization and persistance.
 
 %build
 export CFLAGS="%{optflags}"
+export PYYAML_FORCE_CYTHON=1
 %pyproject_wheel
 # Fix example permissions.
 find examples/ -type f | xargs chmod a-x