diff --git a/python-gprof2dot.changes b/python-gprof2dot.changes
index aeebb19..6eaf774 100644
--- a/python-gprof2dot.changes
+++ b/python-gprof2dot.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue May 26 06:34:29 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
+
+- %python3_only -> %python_alternative
+
 -------------------------------------------------------------------
 Wed May  6 06:34:30 UTC 2020 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python-gprof2dot.spec b/python-gprof2dot.spec
index fdf5316..df61f09 100644
--- a/python-gprof2dot.spec
+++ b/python-gprof2dot.spec
@@ -27,8 +27,9 @@ Source:         https://files.pythonhosted.org/packages/source/g/gprof2dot/gprof
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
+Requires(post): update-alternatives
+Requires(postun): update-alternatives
 BuildArch:      noarch
-
 %python_subpackages
 
 %description
@@ -37,18 +38,25 @@ profilers into a dot graph.
 
 %prep
 %setup -q -n gprof2dot-%{version}
-sed -i -e '/^#!\//, 1d' gprof2dot.py 
+sed -i -e '/^#!\//, 1d' gprof2dot.py
 
 %build
 %python_build
 
 %install
 %python_install
+%python_clone -a %{buildroot}%{_bindir}/gprof2dot
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
+%post
+%python_install_alternative gprof2dot
+
+%postun
+%python_uninstall_alternative gprof2dot
+
 %files %{python_files}
 %license LICENSE.txt
-%python3_only %{_bindir}/gprof2dot
+%python_alternative %{_bindir}/gprof2dot
 %{python_sitelib}/*
 
 %changelog