diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,7 +31,7 @@
 include(KDECMakeSettings)
 include(KDECompilerSettings)
 
-set(QT_MIN_VERSION "5.4.0")
+set(QT_MIN_VERSION "5.5.0")
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED Widgets Concurrent Quick QuickWidgets WebKitWidgets Script Test)
 set(KF5_DEP_VERSION "5.3.0")
 find_package(KF5 ${KF5_DEP_VERSION} REQUIRED COMPONENTS