diff --git a/FlashGBX/pyside.py b/FlashGBX/pyside.py
index 4186111..04118aa 100644
--- a/FlashGBX/pyside.py
+++ b/FlashGBX/pyside.py
@@ -9,6 +9,10 @@ from .Util import dprint
 
 try:
 	import PySide2
+	# PySide2>=5.14 is required
+	major, minor, *_ = PySide2.__version_info__
+	if (major, minor) < (5, 14):
+		raise ImportError('Requires PySide2>=5.14', name=PySide2.__package__, path=PySide2.__path__)
 	psversion = 2
 except ImportError as err:
 	try:
diff --git a/setup.py b/setup.py
index 02a81db..df0a63d 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ setuptools.setup(
 	packages=setuptools.find_packages(),
 	install_requires=['pyserial>=3.5', 'Pillow', 'setuptools', 'requests', 'python-dateutil'],
 	extras_require={
-		"qt5":["PySide2"],
+		"qt5":["PySide2>=15.4"],
 		"qt6":["PySide6"]
 	},
 	include_package_data=True,