diff --git a/poppler.spec b/poppler.spec
index 0b65985..dd866f2 100644
--- a/poppler.spec
+++ b/poppler.spec
@@ -4,7 +4,7 @@
 Summary: PDF rendering library
 Name:    poppler
 Version: 21.01.0
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: (GPLv2 or GPLv3) and GPLv2+ and LGPLv2+ and MIT
 URL:     http://poppler.freedesktop.org/
 Source0: http://poppler.freedesktop.org/poppler-%{version}.tar.xz
@@ -92,6 +92,7 @@ BuildArch: noarch
 %package qt5
 Summary: Qt5 wrapper for poppler
 Requires: %{name}%{?_isa} = %{version}-%{release}
+Obsoletes: %{name}-qt < 0.90.0-9
 %description qt5
 %{summary}.
 
@@ -100,6 +101,7 @@ Summary: Development files for Qt5 wrapper
 Requires: %{name}-qt5%{?_isa} = %{version}-%{release}
 Requires: %{name}-devel%{?_isa} = %{version}-%{release}
 Requires: qt5-qtbase-devel
+Obsoletes: %{name}-qt-devel < 0.90.0-9
 %description qt5-devel
 %{summary}.
 
@@ -212,6 +214,10 @@ test "$(pkg-config --modversion poppler-qt5)" = "%{version}"
 %{_mandir}/man1/*
 
 %changelog
+* Tue Feb 9 2021 Marek Kasik <mkasik@redhat.com> - 21.01.0-5
+- Obsolete Qt4 frontend
+- Resolves: #1926010
+
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 21.01.0-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild