diff --git a/kmahjongg.spec b/kmahjongg.spec
index df54356..85a9ee7 100644
--- a/kmahjongg.spec
+++ b/kmahjongg.spec
@@ -1,5 +1,5 @@
 Name:          kmahjongg
-Version:       15.12.0
+Version:       20.04.0
 Release:       1mamba
 Summary:       KDE Mahjongg Solitaire
 Group:         Graphical Desktop/Applications/Games
@@ -7,15 +7,26 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.kde.org
-Source:        http://download.kde.org/stable/applications/%{version}/src/kmahjongg-%{version}.tar.xz
+Source:        https://download.kde.org/stable/release-service/%{version}/src/kmahjongg-%{version}.tar.xz
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: kdelibs-devel
+BuildRequires: ldconfig
 BuildRequires: libgcc
-BuildRequires: libkdegames-devel
-BuildRequires: libkmahjongg-devel
-BuildRequires: libqt4-devel
+BuildRequires: libkauth-devel
+BuildRequires: libkcodecs-devel
+BuildRequires: libkcompletion-devel
+BuildRequires: libkconfig-devel
+BuildRequires: libkconfigwidgets-devel
+BuildRequires: libkcoreaddons-devel
+BuildRequires: libkcrash-devel
+BuildRequires: libkdbusaddons-devel
+BuildRequires: libkdegames5-devel
+BuildRequires: libki18n-devel
+BuildRequires: libkmahjongg5-devel
+BuildRequires: libkwidgetsaddons-devel
+BuildRequires: libkxmlgui-devel
+BuildRequires: libqt5-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: automoc4
@@ -31,50 +42,56 @@ KDE Mahjongg Solitaire.
 %setup -q
 
 %build
-%cmake_kde4 -d build
+%cmake_kde5 -d build
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 %makeinstall -C build
 
+%find_lang %{name}5_qt --with-qt --with-man --with-html --all-name || touch %{name}5_qt.lang
+
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
 %post
-touch --no-create %{_kde4_icondir}/hicolor >/dev/null 2>&1
+touch --no-create %{_kde5_icondir}/hicolor >/dev/null 2>&1
 exit 0
 
 %posttrans
 update-desktop-database -q >/dev/null 2>&1
-update-mime-database %{_kde4_mimedir} >/dev/null 2>&1
-gtk-update-icon-cache %{_kde4_icondir}/hicolor >/dev/null 2>&1
+update-mime-database %{_kde5_mimedir} >/dev/null 2>&1
+gtk-update-icon-cache %{_kde5_icondir}/hicolor >/dev/null 2>&1
 exit 0
 
 %postun
 if [ $1 -eq 0 ]; then
    update-desktop-database -q >/dev/null 2>&1
-   update-mime-database %{_kde4_mimedir} >/dev/null 2>&1
-   touch --no-create %{_kde4_icondir}/hicolor >/dev/null 2>&1
-   gtk-update-icon-cache %{_kde4_icondir}/hicolor >/dev/null 2>&1
+   update-mime-database %{_kde5_mimedir} >/dev/null 2>&1
+   touch --no-create %{_kde5_icondir}/hicolor >/dev/null 2>&1
+   gtk-update-icon-cache %{_kde5_icondir}/hicolor >/dev/null 2>&1
 fi
 exit 0
 
-%files
+%files -f %{name}5_qt.lang
 %defattr(-,root,root)
-%{_kde4_bindir}/kmahjongg
-%{_kde4_xdgappsdir}/kmahjongg.desktop
-%dir %{_kde4_datadir}/kmahjongg
-%{_kde4_datadir}/kmahjongg/kmahjonggui.rc
-%dir %{_kde4_datadir}/kmahjongg/layouts
-%{_kde4_datadir}/kmahjongg/layouts/*
-%{_kde4_kcfgdir}/kmahjongg.kcfg
-%doc %lang(en) %{_kde4_htmldir}/en/kmahjongg/*
-%{_kde4_icondir}/hicolor/*/apps/kmahjongg.png
-%{_kde4_icondir}/hicolor/scalable/apps/kmahjongg.svgz
+%{_kde5_bindir}/kmahjongg
+%{_datadir}/applications/org.kde.kmahjongg.desktop
+%{_datadir}/kxmlgui5/kmahjongg/kmahjonggui.rc
+%{_datadir}/metainfo/org.kde.kmahjongg.appdata.xml
+%{_datadir}/qlogging-categories5/kmahjongg.categories
+%dir %{_kde5_datadir}/kmahjongg
+%dir %{_kde5_datadir}/kmahjongg/layouts
+%{_kde5_datadir}/kmahjongg/layouts/*
+%{_kde5_kcfgdir}/kmahjongg.kcfg
+%{_kde5_icondir}/hicolor/*/apps/kmahjongg.png
+%{_kde5_icondir}/hicolor/scalable/apps/kmahjongg.svgz
 %doc COPYING COPYING.DOC
 
 %changelog
+* Thu Apr 30 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 20.04.0-1mamba
+- update to 20.04.0
+
 * Wed Jan 06 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 15.12.0-1mamba
 - update to 15.12.0