diff --git a/SPECS/numpy.spec b/SPECS/numpy.spec
index 651505f..a15e87c 100644
--- a/SPECS/numpy.spec
+++ b/SPECS/numpy.spec
@@ -8,7 +8,7 @@
 
 Name:           numpy
 Version:        1.19.4
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        A fast multidimensional array facility for Python
 
 # Everything is BSD except for class SafeEval in numpy/lib/utils.py which is Python
@@ -77,6 +77,8 @@ Requires:       python%{python3_pkgversion}-devel
 Provides:       python%{python3_pkgversion}-f2py = %{version}-%{release}
 %{?python_provide:%python_provide python%{python3_pkgversion}-numpy-f2py}
 
+# Require alternatives version that implements the --keep-foreign flag
+Requires(postun): alternatives >= 1.19.1-1
 # python39 installs the alternatives master symlink to which we attach a slave
 Requires: python%{python3_pkgversion}
 Requires(post): python%{python3_pkgversion}
@@ -159,7 +161,7 @@ alternatives --add-slave python3 %{_bindir}/python%{python3_version} \
 %postun -n python%{python3_pkgversion}-numpy-f2py
 # Do this only during uninstall process (not during update)
 if [ $1 -eq 0 ]; then
-    alternatives --remove-slave python3 %{_bindir}/python%{python3_version} \
+    alternatives --keep-foreign --remove-slave python3 %{_bindir}/python%{python3_version} \
         f2py3
 fi
 
@@ -198,6 +200,10 @@ fi
 
 
 %changelog
+* Thu Aug 05 2021 Tomas Orsava <torsava@redhat.com> - 1.19.4-3
+- Adjusted the postun scriptlets to enable upgrading to RHEL 9
+- Resolves: rhbz#1933055
+
 * Mon Jan 18 2021 Tomas Orsava <torsava@redhat.com> - 1.19.4-2
 - Convert from Fedora to the python39 module in RHEL8
 - Resolves: rhbz#1877430