diff --git a/python-jinja2-time.spec b/python-jinja2-time.spec
index 62d0e89..3ae836c 100644
--- a/python-jinja2-time.spec
+++ b/python-jinja2-time.spec
@@ -1,7 +1,7 @@
 %define pkgname %(echo %name | cut -d- -f2- | tr - _)
 Name:          python-jinja2-time
 Version:       0.2.0
-Release:       3mamba
+Release:       4mamba
 Summary:       Jinja2 Extension for Dates and Times
 Group:         System/Libraries
 Vendor:        openmamba
@@ -21,6 +21,10 @@ BuildRequires: python3-devel >= 3.11.5-3mamba
 %{summary}.
 
 %if 0%{?with_pyver}
+%if "%{?with_pyver}" == "3"
+%define py_requires_append \
+Obsoletes:     python-jinja2-time-py310 < 0.2.0-4mamba
+%endif
 %pyver_package
 %endif
 
@@ -48,6 +52,9 @@ sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
 %doc LICENSE
 
 %changelog
+* Thu Mar 14 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 0.2.0-4mamba
+- obsolete python-jinja2-time-py310
+
 * Tue Sep 26 2023 Automatic Build System <autodist@mambasoft.it> 0.2.0-3mamba
 - rebuilt by autoport with build requirements: python3-devel>=3.11.5-3mamba