diff --git a/CMakeLists.txt b/CMakeLists.txt
index eef4e9c..eb4fcbf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,57 +1,57 @@
 project(plymouthkcm)
 
 cmake_minimum_required(VERSION 2.8.12)
-set(KF5_MIN_VERSION "5.54.0")
+set(KF5_MIN_VERSION "5.56.0")
 set(QT_MIN_VERSION "5.11.0")
 
 ################# Disallow in-source build #################
 
 if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
    message(FATAL_ERROR "plymouthkcm requires an out of source build. Please create a separate build directory and run 'cmake path_to_kirigami [options]' there.")
 endif()
 
 
 
 # Make CPack available to easy generate binary packages
 include(CPack)
 include(FeatureSummary)
 
 ################# set KDE specific information #################
 
 set(PROJECT_VERSION "5.15.80")
 set(PROJECT_VERSION_MAJOR 5)
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED NO_MODULE)
 
 # where to look first for cmake modules, before ${CMAKE_ROOT}/Modules/ is checked
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
 
 include(ECMSetupVersion)
 include(ECMGenerateHeaders)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 
 find_package(Qt5 ${QT_MIN_VERSION} REQUIRED NO_MODULE COMPONENTS Core Quick Test Gui )
 
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
                     Archive NewStuff NewStuffCore KIO Declarative I18n Config ConfigWidgets)
 
 add_definitions("-DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII")
 add_definitions(-DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT)
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x060000)
 add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 ################# Enable C++11 features for clang and gcc #################
 
 if(UNIX)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=c++0x")
 endif()
 
 ################# now find all used packages #################
 
 find_package(Plymouth REQUIRED)
 
 add_subdirectory(src)
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 318cb7d..941d7d2 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,61 +1,61 @@
 # KI18N Translation Domain for this library
 add_definitions(-DTRANSLATION_DOMAIN=\"kcm_plymouth\")
 
 SET(PLYMOUTH_THEMES_DIR "/usr/share/plymouth/themes/" CACHE STRING "Where Plymouth themes are installed")
 SET(PLYMOUTH_CONFIG_PATH "/etc/plymouth/plymouthd.conf" CACHE STRING "where the main plymouth config file is")
 set(PLYMOUNT_KCM_VERSION ${PROJECT_VERSION})
 configure_file (config-kcm.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-kcm.h )
 
 set(kcm_plymouth_SRCS
   kcm.cpp
 )
 
 add_library(kcm_plymouth MODULE ${kcm_plymouth_SRCS})
 
 target_link_libraries(kcm_plymouth
   KF5::CoreAddons
-  KF5::Auth
+  KF5::AuthCore
   KF5::I18n
   KF5::Declarative
   KF5::QuickAddons
   KF5::NewStuff
   KF5::NewStuffCore
   KF5::ConfigCore
   KF5::KIOCore
 
   Qt5::Widgets
   ${X11_LIBRARIES}
 )
 
 kcoreaddons_desktop_to_json(kcm_plymouth "kcm_plymouth.desktop" SERVICE_TYPES kcmodule.desktop)
 
 #this desktop file is installed only for retrocompatibility with sycoca
 install(FILES kcm_plymouth.desktop DESTINATION ${SERVICES_INSTALL_DIR})
 install(TARGETS kcm_plymouth DESTINATION ${PLUGIN_INSTALL_DIR}/kcms)
 install(FILES plymouth.knsrc DESTINATION ${KDE_INSTALL_CONFDIR})
 
 kpackage_install_package(package kcm_plymouth kcms)
 
 #installer tool for knewstuff
 add_executable(kplymouththemeinstaller
     kplymouththemeinstaller.cpp
 )
 
 target_link_libraries(kplymouththemeinstaller
     KF5::I18n
-    KF5::Auth
+    KF5::AuthCore
     KF5::CoreAddons
     KF5::Archive
     KF5::ConfigCore)
 install(TARGETS kplymouththemeinstaller ${KF5_INSTALL_TARGETS_DEFAULT_ARGS})
 
 #polkit stuff
 add_executable(plymouthhelper helper.cpp ${helper_mocs})
 target_link_libraries(plymouthhelper
     KF5::Archive
-    KF5::Auth
+    KF5::AuthCore
     KF5::ConfigCore
     KF5::I18n)
 install(TARGETS plymouthhelper DESTINATION ${KAUTH_HELPER_INSTALL_DIR})
 kauth_install_helper_files(plymouthhelper org.kde.kcontrol.kcmplymouth root)
 kauth_install_actions(org.kde.kcontrol.kcmplymouth kcmplymouth_actions.actions)