diff --git a/CMakeLists.txt b/CMakeLists.txt
index b9deb0f..3a08fe9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,39 +1,39 @@
 project(knavalbattle)
 
-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
   Config
   Crash
   DBusAddons
   DNSSD
   DocTools
   I18n
   TextWidgets
   XmlGui
 )
 
 find_package(KF5KDEGames 4.9.0 REQUIRED)
 
 include(FeatureSummary)
 include(ECMAddAppIcon)
 include(ECMInstallIcons)
 include(KDEInstallDirs)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
 
 add_definitions(-DQT_USE_FAST_CONCATENATION -DQT_USE_FAST_OPERATOR_PLUS)
 #add_definitions(-DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII)
 
 add_subdirectory(src) 
 add_subdirectory(data)
 add_subdirectory(doc)
 add_subdirectory(kconf_update)
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)