diff --git a/libmodulemd.spec b/libmodulemd.spec
index 330154c..568da14 100644
--- a/libmodulemd.spec
+++ b/libmodulemd.spec
@@ -5,7 +5,7 @@
 
 Name:           libmodulemd
 Version:        %{majorminorversion}%{?patchversion:.%{patchversion}}
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Module metadata manipulation library
 
 License:        MIT
@@ -19,6 +19,9 @@ BuildRequires:  pkgconfig(gobject-introspection-1.0)
 BuildRequires:  pkgconfig(yaml-0.1)
 BuildRequires:  pkgconfig(gtk-doc)
 
+Obsoletes:      python2-modulemd < 1.3.4
+Obsoletes:      python3-modulemd < 1.3.4
+
 # Patches
 
 %description
@@ -68,6 +71,9 @@ export LC_CTYPE=C.utf8
 %{_datadir}/gtk-doc/html/modulemd/
 
 %changelog
+* Tue Mar 13 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.0.4-2
+- Obsolete unsupported pythonX-modulemd packages
+
 * Tue Feb 27 2018 Stephen Gallagher <sgallagh@redhat.com> - 1.0.4-1
 - Update to 1.0.4
 - Rework version autodetection