diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@
 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)
diff --git a/daemon/backends/CMakeLists.txt b/daemon/backends/CMakeLists.txt
--- a/daemon/backends/CMakeLists.txt
+++ b/daemon/backends/CMakeLists.txt
@@ -34,23 +34,23 @@
 
 ## 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