diff --git a/CMakeLists.txt b/CMakeLists.txt
index 13d4c2fe9..105ceb9e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,7 +43,7 @@ endif()
 
 ################# now find all used packages #################
 
-set (REQUIRED_QT_VERSION "5.3.0")
+set (REQUIRED_QT_VERSION 5.6.0)
 
 find_package(Qt5 ${REQUIRED_QT_VERSION} REQUIRED NO_MODULE COMPONENTS Quick Gui Sql Qml Svg)