diff --git a/python-thriftpy2.changes b/python-thriftpy2.changes
index 0378593..954b7b4 100644
--- a/python-thriftpy2.changes
+++ b/python-thriftpy2.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Aug 13 19:26:52 UTC 2023 - Dirk Müller <dmueller@suse.com>
+
+- restrict to older cython 
+
 -------------------------------------------------------------------
 Mon Feb 20 10:09:40 UTC 2023 - Daniel Garcia <daniel.garcia@suse.com>
 
diff --git a/python-thriftpy2.spec b/python-thriftpy2.spec
index 8c3c5ff..2201c2b 100644
--- a/python-thriftpy2.spec
+++ b/python-thriftpy2.spec
@@ -25,7 +25,7 @@ Group:          Development/Languages/Python
 URL:            https://github.com/Thriftpy/thriftpy2
 Source0:        https://github.com/Thriftpy/thriftpy2/archive/v%{version}.tar.gz
 Source1:        new_certs.tar.xz
-BuildRequires:  %{python_module Cython >= 0.28.4}
+BuildRequires:  %{python_module Cython >= 0.28.4 with %python-Cython < 3}
 BuildRequires:  %{python_module dbm}
 BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module ply >= 3.4}