diff --git a/python-httptools.changes b/python-httptools.changes
index 2c2ee04..b78bc2c 100644
--- a/python-httptools.changes
+++ b/python-httptools.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Aug 13 19:15:04 UTC 2023 - Dirk Müller <dmueller@suse.com>
+
+- restrict to older Cython 
+
 -------------------------------------------------------------------
 Fri Apr 21 12:26:23 UTC 2023 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-httptools.spec b/python-httptools.spec
index 30bcbdd..6ea1009 100644
--- a/python-httptools.spec
+++ b/python-httptools.spec
@@ -29,7 +29,7 @@ URL:            https://github.com/MagicStack/httptools
 Source0:        https://github.com/MagicStack/httptools/archive/v%{version}.tar.gz#/httptools-%{version}.tar.gz
 Source1:        https://github.com/nodejs/llhttp/archive/refs/tags/release/v6.0.6.tar.gz#/llhttp-release-v6.0.6.tar.gz
 Source2:        https://github.com/nodejs/http-parser/archive/refs/tags/v2.9.4.tar.gz#/http-parser-2.9.4.tar.gz
-BuildRequires:  %{python_module Cython >= 0.29.24}
+BuildRequires:  %{python_module Cython >= 0.29.24 with %python-Cython < 3}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes