diff --git a/kalk.spec b/kalk.spec
index 9d8529a..ce8c109 100644
--- a/kalk.spec
+++ b/kalk.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          kalk
-Version:       23.08.5
+Version:       24.02.1
 Release:       1mamba
 Summary:       A convergent calculator application built with the Kirigami framework
 Group:         Graphical Desktop/Applications/Scientific
@@ -9,24 +9,23 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://kde.org
-Source:        https://download.kde.org/stable/release-service/%{version}/src/kalk-%{version}.tar.xz
+Source:        https://download.kde.org/%{stable_kde6}/release-service/%{version}/src/kalk-%{version}.tar.xz
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libgcc
-BuildRequires: libgmp-devel
-BuildRequires: libkconfig-devel
-BuildRequires: libkcoreaddons-devel
-BuildRequires: libki18n-devel
-BuildRequires: libkunitconversion-devel
-BuildRequires: libmpfr-devel
+BuildRequires: libglvnd-devel
+BuildRequires: libkf6-kconfig-devel
+BuildRequires: libkf6-kcoreaddons-devel
+BuildRequires: libkf6-ki18n-devel
+BuildRequires: libkf6-kunitconversion-devel
+BuildRequires: libqalculate-devel
 BuildRequires: libstdc++6-devel
-BuildRequires: qt5-qtbase-devel
-BuildRequires: qt5-qtdeclarative-devel
-BuildRequires: qt5-qtquickcontrols2-devel
+BuildRequires: qt6-qtbase-devel
+BuildRequires: qt6-qtdeclarative-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
-BuildRequires: rpm-macros-kde5
+BuildRequires: kf6-rpm-macros
 BuildRequires: extra-cmake-modules
 
 %description
@@ -38,19 +37,19 @@ A convergent calculator application built with the Kirigami framework.
 %setup -q
 
 %build
-%cmake_kde5 -d build
-%make
+%cmake_kf6
+%cmake_build
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall -C build
+%cmake_install
 
-%find_lang %{name}5_qt --with-qt --with-man --with-html --all-name || touch %{name}5_qt.lang
+%find_lang %{name} --with-qt --with-man --with-html --all-name || touch %{name}.lang
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%files -f %{name}5_qt.lang
+%files -f %{name}.lang
 %defattr(-,root,root)
 %{_bindir}/kalk
 %{_datadir}/applications/org.kde.kalk.desktop
@@ -59,7 +58,13 @@ A convergent calculator application built with the Kirigami framework.
 %doc LICENSES
 
 %changelog
-* Sun Feb 18 2024 Automatic Build System <autodist@openmamba.org> 23.08.5-1mamba
+* Sat Mar 23 2024 Automatic Build System <autodist@openmamba.org> 24.02.1-1mamba
+- automatic version update by autodist
+
+* Sun Mar 03 2024 Automatic Build System <autodist@openmamba.org> 24.02.0-1mamba
+- automatic version update by autodist
+
+* Fri Feb 16 2024 Automatic Build System <autodist@openmamba.org> 24.01.95-1mamba
 - automatic version update by autodist
 
 * Sat Dec 09 2023 Automatic Build System <autodist@mambasoft.it> 23.08.4-1mamba