diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@
 
 # check with non-Plasma consumers (e.g. KDevelop) before bumping these versions
 set(QT_MIN_VERSION "5.5.0")
-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})
diff --git a/processcore/CMakeLists.txt b/processcore/CMakeLists.txt
--- a/processcore/CMakeLists.txt
+++ b/processcore/CMakeLists.txt
@@ -56,7 +56,7 @@
     processes_base_p.cpp)
 
 add_executable(ksysguardprocesslist_helper ${ksysguardprocesslist_helper_srcs})
-target_link_libraries(ksysguardprocesslist_helper Qt5::Core KF5::Auth KF5::I18n)
+target_link_libraries(ksysguardprocesslist_helper Qt5::Core KF5::AuthCore KF5::I18n)
 install(TARGETS ksysguardprocesslist_helper DESTINATION ${KAUTH_HELPER_INSTALL_DIR})
 
 kauth_install_helper_files(ksysguardprocesslist_helper org.kde.ksysguard.processlisthelper root)
diff --git a/processui/CMakeLists.txt b/processui/CMakeLists.txt
--- a/processui/CMakeLists.txt
+++ b/processui/CMakeLists.txt
@@ -39,7 +39,7 @@
         Qt5::DBus
         KF5::I18n
         KF5::WindowSystem
-        KF5::Auth
+        KF5::AuthCore
         KF5::Completion
         KF5::ConfigWidgets
         KF5::WidgetsAddons