diff --git a/QXlsx/CMakeLists.txt b/QXlsx/CMakeLists.txt
index 5dcb876..7207f94 100644
--- a/QXlsx/CMakeLists.txt
+++ b/QXlsx/CMakeLists.txt
@@ -13,7 +13,9 @@ set(CMAKE_AUTOMOC ON)
 
 include(GNUInstallDirs)
 
-find_package(QT NAMES Qt6 Qt5 COMPONENTS Core Gui REQUIRED)
+if(NOT DEFINED QT_VERSION_MAJOR)
+    find_package(QT NAMES Qt6 Qt5 COMPONENTS Core Gui REQUIRED)
+endif()
 find_package(Qt${QT_VERSION_MAJOR} 5.9 COMPONENTS Core Gui REQUIRED)
 set(EXPORT_NAME QXlsxQt${QT_VERSION_MAJOR})
 
@@ -150,7 +152,7 @@ target_compile_definitions(QXlsx PRIVATE
     QT_USE_QSTRINGBUILDER
     QT_NO_SIGNALS_SLOTS_KEYWORDS
     QT_USE_FAST_OPERATOR_PLUS
-    QT_DISABLE_DEPRECATED_BEFORE=0x050F00
+    QT_DISABLE_DEPRECATED_BEFORE=0x060200
 )
 
 if (NOT WIN32)