diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6685d2c..2914fa9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,104 +1,104 @@
 project(kapman)
 
-cmake_minimum_required (VERSION 2.8.12 FATAL_ERROR)
+cmake_minimum_required (VERSION 3.5 FATAL_ERROR)
 set (QT_MIN_VERSION "5.7.0")
 set (KF5_MIN_VERSION "5.30.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED CONFIG)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
 
 find_package(Qt5 ${QT_MIN_VERSION} REQUIRED NO_MODULE COMPONENTS Widgets Svg)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
     CoreAddons
     Config
     Crash
     DBusAddons
     DocTools
     Config
     I18n
     ConfigWidgets
     XmlGui
     )
 
 find_package(KF5KDEGames 4.9.0 REQUIRED)
 
 include(FeatureSummary)
 include(ECMInstallIcons)
 include(KDEInstallDirs)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
 include(ECMAddAppIcon)
 
 add_definitions(
     -DQT_USE_FAST_CONCATENATION
     -DQT_USE_FAST_OPERATOR_PLUS
     -DQT_NO_CAST_FROM_ASCII
     -DQT_NO_CAST_TO_ASCII
     -DQT_NO_CAST_FROM_BYTEARRAY
     -DQT_NO_URL_CAST_FROM_STRING
     -DQT_USE_QSTRINGBUILDER
 )
 if (${KF5Config_VERSION} STRGREATER "5.56.0")
         add_definitions(-DQT_NO_FOREACH)
         MESSAGE(STATUS "compile without foreach")
 endif()
 
 add_subdirectory(doc)
 
 set(kapman_SRCS
 	bonus.cpp
 	cell.cpp
 	character.cpp
 	characteritem.cpp
 	element.cpp
 	elementitem.cpp
 	energizer.cpp
 	game.cpp
 	gamescene.cpp
 	gameview.cpp
 	ghost.cpp
 	ghostitem.cpp
 	kapman.cpp
 	kapmanitem.cpp
 	kapmanmainwindow.cpp
 	kapmanparser.cpp
 	main.cpp
 	maze.cpp
 	mazeitem.cpp
 	pill.cpp
 )
 file(GLOB themes
 	"themes/*.svgz"
 	"themes/*.desktop"
 	"themes/*.copyright"
 	"themes/*.png"
 )
 file(GLOB sounds_ogg "sounds/*.ogg")
 
 kconfig_add_kcfg_files(kapman_SRCS settings.kcfgc)
 
 ecm_install_icons(ICONS 128-apps-kapman.png  16-apps-kapman.png  22-apps-kapman.png  32-apps-kapman.png  48-apps-kapman.png  64-apps-kapman.png DESTINATION ${KDE_INSTALL_ICONDIR} THEME hicolor)
 
 file(GLOB ICONS_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/*-apps-kapman.png")
 ecm_add_app_icon(kapman_SRCS ICONS ${ICONS_SRCS})
 add_executable(kapman ${kapman_SRCS})
 
 target_link_libraries(kapman 
    KF5KDEGames
    KF5KDEGamesPrivate
    Qt5::Svg
    Qt5::Xml
    KF5::Crash
    KF5::DBusAddons
    KF5::XmlGui
 )
 
 install(TARGETS kapman ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 install(PROGRAMS org.kde.kapman.desktop DESTINATION ${KDE_INSTALL_APPDIR})
 install(FILES org.kde.kapman.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
 install(FILES kapmanui.rc DESTINATION ${KDE_INSTALL_KXMLGUI5DIR}/kapman)
 install(FILES defaultmaze.xml DESTINATION ${KDE_INSTALL_DATADIR}/kapman)
 install(FILES ${themes} DESTINATION ${KDE_INSTALL_DATADIR}/kapman/themes)
 install(FILES ${sounds_ogg} DESTINATION ${KDE_INSTALL_SOUNDDIR}/kapman)
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)