diff --git a/CMakeLists.txt b/CMakeLists.txt
index 49669ee..9eefed4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,82 +1,82 @@
 project( killbots )
 
-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)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
     CoreAddons
     Config
     Crash
     WidgetsAddons
     Config
     I18n
     ConfigWidgets
     XmlGui
     Completion
     DocTools
     DBusAddons
 )
 
 find_package(KF5KDEGames 4.9.0 REQUIRED)
 
 include(FeatureSummary)
 include(ECMAddAppIcon)
 include(ECMInstallIcons)
 include(KDEInstallDirs)
 include(KDEFrameworkCompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
 include(ECMAddTests)
 
 ###### Switching to Subdirectories ######
 add_subdirectory(icons)
 add_subdirectory(rulesets)
 add_subdirectory(themes)
 #Reactivate
 #add_subdirectory(tests)
 add_subdirectory(doc)
 
 ###### Building killbots executable ######
 set(killbots_SRCS
     main.cpp
     coordinator.cpp
     engine.cpp
     mainwindow.cpp
     numericdisplayitem.cpp
     optionspage.cpp
     renderer.cpp
     ruleset.cpp
     rulesetdetailsdialog.cpp
     rulesetselector.cpp
     scene.cpp
     sprite.cpp
     view.cpp
 )
 qt5_add_resources(killbots_SRCS killbots.qrc)
 
 kconfig_add_kcfg_files( killbots_SRCS settings.kcfgc rulesetbase.kcfgc )
 file(GLOB ICONS_SRCS "${CMAKE_CURRENT_SOURCE_DIR}/icons/*-apps-killbots.png")
 ecm_add_app_icon(killbots_SRCS ICONS ${ICONS_SRCS})
 add_executable(killbots ${killbots_SRCS})
 target_link_libraries(killbots
     KF5KDEGames
     Qt5::Xml
     KF5::XmlGui
     Qt5::Widgets
     KF5::DBusAddons
     KF5::Completion
     KF5::Crash
     KF5::I18n
 )
 
 ###### Installing Files ######
 install(TARGETS killbots ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
 install(PROGRAMS org.kde.killbots.desktop DESTINATION ${KDE_INSTALL_APPDIR})
 install(FILES org.kde.killbots.appdata.xml DESTINATION  ${KDE_INSTALL_METAINFODIR})
 install(FILES killbots.kcfg DESTINATION ${KDE_INSTALL_KCFGDIR})
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)