diff --git a/quassel.changes b/quassel.changes
index cc2e18a..e8c617c 100644
--- a/quassel.changes
+++ b/quassel.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Nov 23 09:05:32 UTC 2020 - Christophe Giboudeaux <christophe@krop.fr>
+
+- Spec cleanup
+
 -------------------------------------------------------------------
 Wed Aug 26 06:30:00 UTC 2020 - Antonio Larrosa <alarrosa@suse.com>
 
diff --git a/quassel.spec b/quassel.spec
index c4c70a4..b532283 100644
--- a/quassel.spec
+++ b/quassel.spec
@@ -37,32 +37,30 @@ Source5:        quassel-rpmlintrc
 Patch0:         quassel-set-required-libs-and-flags.patch
 # PATCH-FIX-UPSTREAM: Fix build with Qt 5.14
 Patch1:         0001-common-Disable-enum-type-stream-operators-for-Qt-5.1.patch
-BuildRequires:  cmake >= 2.8.10
-BuildRequires:  extra-cmake-modules
 BuildRequires:  fdupes
 BuildRequires:  git
 BuildRequires:  hicolor-icon-theme
-BuildRequires:  kconfigwidgets-devel
-BuildRequires:  kcoreaddons-devel
 BuildRequires:  kf5-filesystem
-BuildRequires:  knotifications-devel
-BuildRequires:  knotifyconfig-devel
-BuildRequires:  ktextwidgets-devel
-BuildRequires:  kxmlgui-devel
 BuildRequires:  openldap2-devel
 BuildRequires:  pkgconfig
-BuildRequires:  snorenotify-qt5-devel >= 0.7
+BuildRequires:  cmake(KF5ConfigWidgets)
+BuildRequires:  cmake(KF5CoreAddons)
+BuildRequires:  cmake(KF5Notifications)
+BuildRequires:  cmake(KF5NotifyConfig)
+BuildRequires:  cmake(KF5TextWidgets)
+BuildRequires:  cmake(KF5XmlGui)
+BuildRequires:  cmake(LibsnoreQt5) >= 0.7
+BuildRequires:  cmake(Qt5Core) >= 5.2.0
+BuildRequires:  cmake(Qt5Gui)
 BuildRequires:  cmake(Qt5LinguistTools)
-BuildRequires:  pkgconfig(Qt5Core) >= 5.2.0
-BuildRequires:  pkgconfig(Qt5Gui)
-BuildRequires:  pkgconfig(Qt5Multimedia)
-BuildRequires:  pkgconfig(Qt5Network)
-BuildRequires:  pkgconfig(Qt5Script)
-BuildRequires:  pkgconfig(Qt5Sql)
-BuildRequires:  pkgconfig(Qt5WebEngine)
-BuildRequires:  pkgconfig(Qt5Widgets)
-BuildRequires:  pkgconfig(dbusmenu-qt5)
-BuildRequires:  pkgconfig(qca2-qt5)
+BuildRequires:  cmake(Qt5Multimedia)
+BuildRequires:  cmake(Qt5Network)
+BuildRequires:  cmake(Qt5Script)
+BuildRequires:  cmake(Qt5Sql)
+BuildRequires:  cmake(Qt5WebEngine)
+BuildRequires:  cmake(Qt5Widgets)
+BuildRequires:  cmake(dbusmenu-qt5)
+BuildRequires:  cmake(qca2-qt5)
 BuildRequires:  pkgconfig(systemd)
 BuildRequires:  pkgconfig(zlib)
 %{?systemd_requires}
@@ -150,8 +148,7 @@ such as WeeChat, but graphical.
 This contains common parts shared by %{name} and %{name}-client.
 
 %prep
-%setup -q -n %{name}-%{realver}
-%autopatch -p1
+%autosetup -p1 -n %{name}-%{realver}
 
 %build
 FAKE_BUILDDATE=$(LC_ALL=C date -r %{_sourcedir}/%{name}.changes '+%%b %%e %%Y')
@@ -160,10 +157,10 @@ FAKE_BUILDTIME=$(LC_ALL=C date -r %{_sourcedir}/%{name}.changes '+%%H:%%M:%%S')
 sed -i "s/__TIME__/\"$FAKE_BUILDTIME\"/" src/common/quassel.cpp
 
 %cmake_kf5 -d build -- -DUSE_QT5=ON -DWITH_WEBENGINE=ON -DWITH_KDE=ON
-make %{?_smp_mflags}
+%cmake_build
 cd ..
 %cmake_kf5 -d build-qt5 -- -DUSE_QT5=ON -DWITH_WEBENGINE=ON -DWITH_KDE=OFF
-make %{?_smp_mflags}
+%cmake_build
 
 %install
 %kf5_makeinstall -C build
@@ -209,14 +206,6 @@ sed -i '1{
 %postun core
 %service_del_postun quasselcore.service
 
-%if 0%{?suse_version} < 1500
-%post base
-%icon_theme_cache_post
-
-%postun base
-%icon_theme_cache_postun
-%endif
-
 %post client
 update-alternatives --install %{_bindir}/quasselclient quasselclient %{_bindir}/quasselclient-kde 20