diff --git a/SPECS/python-nose.spec b/SPECS/python-nose.spec
index 6a559cb..21913f9 100644
--- a/SPECS/python-nose.spec
+++ b/SPECS/python-nose.spec
@@ -31,7 +31,7 @@ output capture and more.\
 
 Name:           python-%{modname}
 Version:        1.3.7
-Release:        30%{?dist}
+Release:        31%{?dist}
 BuildArch:      noarch
 
 License:        LGPLv2+ and Public Domain
@@ -94,7 +94,10 @@ BuildRequires:  python3-devel
 %endif
 BuildRequires:  python3-setuptools
 BuildRequires:  python3-coverage >= 3.4-1
-# for alternatives
+
+# Require alternatives version that implements the --keep-foreign flag
+Requires(postun): alternatives >= 1.19.1-1
+# For alternatives
 Requires:       python36
 Requires(post): python36
 Requires(postun): python36
@@ -205,10 +208,10 @@ alternatives --add-slave python3 %{_bindir}/python%{python3_version} \
 
 %postun -n python3-%{modname}
 if [ $1 -eq 0 ]; then
-  alternatives --remove-slave python3 \
+  alternatives --keep-foreign --remove-slave python3 \
       %{_bindir}/python%{python3_version} nosetests-3
 
-  alternatives --remove-slave python3 \
+  alternatives --keep-foreign --remove-slave python3 \
       %{_bindir}/python%{python3_version} nosetests-3-man
 fi
 %endif
@@ -246,6 +249,10 @@ fi
 %endif  # with python3
 
 %changelog
+* Fri Jul 30 2021 Tomas Orsava <torsava@redhat.com> - 1.3.7-31
+- Adjusted the postun scriptlets to enable upgrading to RHEL 9
+- Resolves: rhbz#1933055
+
 * Thu Apr 25 2019 Tomas Orsava <torsava@redhat.com> - 1.3.7-30
 - Bumping due to problems with modular RPM upgrade path
 - Resolves: rhbz#1695587