diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e1eb64e..afc7b108 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,77 +1,77 @@
 cmake_minimum_required(VERSION 3.0)
 
 project(PowerDevil)
 set(PROJECT_VERSION "5.15.80")
 set(PROJECT_VERSION_MAJOR 5)
 
 set(QT_MIN_VERSION "5.11.0")
-set(KF5_MIN_VERSION "5.54.0")
+set(KF5_MIN_VERSION "5.56.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
 include(FeatureSummary)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS Widgets DBus X11Extras)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Activities Auth IdleTime Config DBusAddons Solid I18n GlobalAccel KIO NotifyConfig Wayland DocTools Crash Notifications)
 find_package(KF5Screen CONFIG REQUIRED)
 find_package(LibKWorkspace CONFIG REQUIRED)
 
 find_package(KF5BluezQt ${KF5_MIN_VERSION})
 set_package_properties(KF5BluezQt
     PROPERTIES DESCRIPTION "Qt wrapper for BlueZ 5 DBus API"
     TYPE OPTIONAL
     PURPOSE "Support for wireless energy saving actions"
 )
 find_package(KF5NetworkManagerQt ${KF5_MIN_VERSION})
 set_package_properties(KF5NetworkManagerQt
     PROPERTIES DESCRIPTION "Qt wrapper for NetworkManager API"
     TYPE OPTIONAL
     PURPOSE "Support for wireless energy saving actions"
 )
 
 set(HAVE_WIRELESS_SUPPORT FALSE)
 if(KF5NetworkManagerQt_FOUND AND KF5BluezQt_FOUND)
     set(HAVE_WIRELESS_SUPPORT TRUE)
 endif()
 add_feature_info(
     "Wireless power saving"
     HAVE_WIRELESS_SUPPORT
     "Support turning off signal-transmitting devices to save energy"
 )
 
 find_package(LibKWorkspace ${PROJECT_VERSION} REQUIRED)
 
 find_package(UDev REQUIRED)
 
 find_package(XCB REQUIRED COMPONENTS XCB RANDR DPMS)
 
 option(WITH_DDCUTIL "DDCUtil library support" OFF)
 if(WITH_DDCUTIL)
   find_package(DDCUtil REQUIRED)
   set_package_properties(DDCUtil
       PROPERTIES DESCRIPTION "DDCUtil library support"
       TYPE OPTIONAL
       PURPOSE "Set monitor settings over DDC/CI channel"
   )
 else()
   add_feature_info("DDCUtil" "Off" "DDCUtil library support is disabled by default as recomemded by authors, add -DWITH_DDCUTIL=On to enable")
 endif()
 
 include_directories (
     ${CMAKE_CURRENT_BINARY_DIR}
     ${CMAKE_CURRENT_SOURCE_DIR}/daemon
 )
 
 add_definitions(-DQT_NO_KEYWORDS)
 
 add_subdirectory(daemon)
 add_subdirectory(kcmodule)
 add_subdirectory(doc)
 
 install( FILES powerdevil.notifyrc DESTINATION ${KDE_INSTALL_KNOTIFY5RCDIR} )
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
diff --git a/daemon/backends/CMakeLists.txt b/daemon/backends/CMakeLists.txt
index 8c5e203b..89400446 100644
--- a/daemon/backends/CMakeLists.txt
+++ b/daemon/backends/CMakeLists.txt
@@ -1,69 +1,69 @@
 ########################## UPower Backend #####################################
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/upower
                     ${X11_INCLUDE_DIR}
                     ${X11_Xrandr_INCLUDE_PATH})
 
 set(powerdevilupowerbackend_SRCS
     ${PowerDevil_SOURCE_DIR}/daemon/powerdevil_debug.cpp
     upower/upowersuspendjob.cpp
     upower/login1suspendjob.cpp
     upower/powerdevilupowerbackend.cpp
     upower/xrandrbrightness.cpp
     upower/xrandrxcbhelper.cpp
     upower/udevqtclient.cpp
     upower/udevqtdevice.cpp
     upower/ddcutilbrightness.cpp
 )
 
 set_source_files_properties(
 ${CMAKE_CURRENT_SOURCE_DIR}/upower/dbus/org.freedesktop.UPower.xml
 ${CMAKE_CURRENT_SOURCE_DIR}/upower/dbus/org.freedesktop.UPower.Device.xml
 PROPERTIES NO_NAMESPACE TRUE)
 
 qt5_add_dbus_interface(powerdevilupowerbackend_SRCS
 ${CMAKE_CURRENT_SOURCE_DIR}/upower/dbus/org.freedesktop.UPower.xml
 upower_interface)
 
 qt5_add_dbus_interface(powerdevilupowerbackend_SRCS
 ${CMAKE_CURRENT_SOURCE_DIR}/upower/dbus/org.freedesktop.UPower.Device.xml
 upower_device_interface)
 
 qt5_add_dbus_interface(powerdevilupowerbackend_SRCS
 ${CMAKE_CURRENT_SOURCE_DIR}/upower/dbus/org.freedesktop.UPower.KbdBacklight.xml
 upower_kbdbacklight_interface)
 
 ## backlight helper executable
 add_executable(backlighthelper upower/backlighthelper.cpp ${PowerDevil_SOURCE_DIR}/daemon/powerdevil_debug.cpp ${backlighthelper_mocs})
-target_link_libraries(backlighthelper Qt5::Core KF5::Auth KF5::I18n)
+target_link_libraries(backlighthelper Qt5::Core KF5::AuthCore KF5::I18n)
 install(TARGETS backlighthelper DESTINATION ${KAUTH_HELPER_INSTALL_DIR})
 kauth_install_helper_files(backlighthelper org.kde.powerdevil.backlighthelper root)
 kauth_install_actions(org.kde.powerdevil.backlighthelper ${CMAKE_CURRENT_SOURCE_DIR}/upower/backlight_helper_actions.actions)
 
 ## discrete gpu helper executable
 add_executable(discretegpuhelper upower/discretegpuhelper.cpp ${PowerDevil_SOURCE_DIR}/daemon/powerdevil_debug.cpp ${discretegpuhelper_mocs})
-target_link_libraries(discretegpuhelper Qt5::Core KF5::Auth)
+target_link_libraries(discretegpuhelper Qt5::Core KF5::AuthCore)
 install(TARGETS discretegpuhelper DESTINATION ${KAUTH_HELPER_INSTALL_DIR})
 kauth_install_helper_files(discretegpuhelper org.kde.powerdevil.discretegpuhelper root)
 kauth_install_actions(org.kde.powerdevil.discretegpuhelper ${CMAKE_CURRENT_SOURCE_DIR}/upower/discretegpu_helper_actions.actions)
 
 add_library(powerdevilupowerbackend ${powerdevilupowerbackend_SRCS})
 set_target_properties(powerdevilupowerbackend PROPERTIES PREFIX "")
 target_link_libraries(powerdevilupowerbackend
     Qt5::Widgets
-    KF5::Auth
+    KF5::AuthCore
     KF5::ConfigCore
     KF5::CoreAddons
     KF5::DBusAddons
     KF5::I18n
     ${UDEV_LIBS}
     ${X11_LIBRARIES}
     ${X11_Xrandr_LIB}
     ${XCB_XCB_LIBRARY}
     ${XCB_RANDR_LIBRARY}
     powerdevilcore
 )
 if(DDCUTIL_FOUND)
     target_link_libraries(powerdevilupowerbackend ${LIBDDCUTIL_LIBRARY})
 endif()
 
 install(TARGETS powerdevilupowerbackend DESTINATION ${KDE_INSTALL_PLUGINDIR}/kf5/powerdevil)