diff --git a/Cython.spec b/Cython.spec
index 985ea98..9c9d1c6 100644
--- a/Cython.spec
+++ b/Cython.spec
@@ -8,7 +8,7 @@
 
 Name:           Cython
 Version:        0.29.22
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Language for writing Python extension modules
 
 License:        ASL 2.0
@@ -129,6 +129,11 @@ cp -p cython-mode-init.el cython-mode-init.elc %{buildroot}%{_emacs_sitestartdir
 
 
 %changelog
+* Tue Feb 08 2022 Tomas Orsava <torsava@redhat.com> - 0.29.22-6
+- Add automatically generated Obsoletes tag with the python39- prefix
+  for smoother upgrade from RHEL8
+- Related: rhbz#1990421
+
 * Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com>
 - Rebuilt for IMA sigs, glibc 2.34, aarch64 flags
   Related: rhbz#1991688