diff --git a/python-simplejson.spec b/python-simplejson.spec
index a9cdc48..a5e3671 100644
--- a/python-simplejson.spec
+++ b/python-simplejson.spec
@@ -1,6 +1,6 @@
 Name:          python-simplejson
 Version:       3.19.2
-Release:       1mamba
+Release:       2mamba
 Summary:       Simple, fast, extensible JSON encoder/decoder for Python
 Group:         System/Libraries/Python
 Vendor:        openmamba
@@ -15,9 +15,6 @@ BuildRequires: libpython311-devel
 ## AUTOBUILDREQ-END
 BuildRequires: python3-devel >= 3.11.5-3mamba
 BuildRequires: libpython3-devel >= 3.7.4
-BuildRequires: python-nose
-BuildRequires: python-setuptools-devel
-Requires:      python >= %python_version
 
 %description
 simplejson is a simple, fast, complete, correct and extensible JSON <http://json.org> encoder and decoder for Python 2.4+.  It is pure Python code with no dependencies, but includes an optional C extension for a serious speed boost.
@@ -26,6 +23,8 @@ The encoder may be subclassed to provide serialization in any kind of situation,
 The decoder can handle incoming JSON strings of any specified encoding (UTF-8 by default).
 
 %if "%{?with_pyver}"
+%define py_requires_append \
+Obsoletes:     python-simplejson-py310 < 3.19.2-2mamba
 %pyver_package
 %endif
 
@@ -79,6 +78,9 @@ nosetests -q
 %doc LICENSE.txt
 
 %changelog
+* Fri Jan 19 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 3.19.2-2mamba
+- obsolete python-simplejson-py310
+
 * Fri Oct 06 2023 Automatic Build System <autodist@mambasoft.it> 3.19.2-1mamba
 - automatic version update by autodist