diff --git a/python36-falcon3.spec b/python36-falcon3.spec
index 88073d2..c5939f2 100644
--- a/python36-falcon3.spec
+++ b/python36-falcon3.spec
@@ -1,47 +1,48 @@
 #
 # spec file for package python-falcon 3.0.1 on RHEL7
 # Copyright (c) 2021 Ecole Polytechnique
 # Federale de Lausanne - Switzerland
 #
 
 %define python_sitelib /usr/lib64/python3.6/site-packages
 %define _unpackaged_files_terminate_build 0
 
 Name:           python-falcon
 Version:        3.0.1
 Release:        0
 Summary:        An unladen web framework for building APIs and app backends.
 License:        Apache-2.0
 URL:            https://falconframework.org
 Source:         https://files.pythonhosted.org/packages/source/f/falcon/falcon-%{version}.tar.gz
+Conflicts:      python36-falcon-1.4.1-2.el7 
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  python36-devel
 
 %description
 `Falcon <https://falconframework.org>`__ is a reliable,
 high-performance Python web framework for building
 large-scale app backends and microservices. It encourages the REST
 architectural style, and tries to do as little as possible while
 remaining highly effective.
 
 Falcon apps work with any `WSGI <https://www.python.org/dev/peps/pep-3333/>`_
 or `ASGI <https://asgi.readthedocs.io/en/latest/>`_ server, and run like a
 champ under CPython 3.5+ and PyPy 3.5+ (3.6+ required for ASGI).
 
 %prep
 %setup -q -n falcon-%{version}
 
 %build
 python3 setup.py build
 
 %install
 python3 setup.py install --prefix=%{_prefix} --root=%{buildroot}
 
 %clean
 rm -rf %{buildroot}
 
 %files
 %defattr(-,root,root,-)
 %{python_sitelib}/*
 /usr/bin/falcon-inspect-app
 /usr/bin/falcon-print-routes