diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e049063b542d5e1d30477ed7f67bba257eb1cb2..6adbda8628ccd738476cf1280ba6dd781d9c7303 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,8 +16,8 @@ if(DEFINED ENV{QT_VERSION})
 endif()
 
 if(NOT QT_VERSION)
-	# try Qt 5.11.2 if none specified
-	set(QT_VERSION "5.11.2")
+	# try Qt 5.12.0 if none specified, last LTS.
+	set(QT_VERSION "5.12.0")
 endif()
 
 if(DEFINED ENV{QT_MKSPEC})