diff --git a/www/py-django-mptt/Makefile b/www/py-django-mptt/Makefile
index 6268ea4b6b07..822624fecf27 100644
--- a/www/py-django-mptt/Makefile
+++ b/www/py-django-mptt/Makefile
@@ -17,7 +17,7 @@ BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}hatchling>0:devel/py-hatchling@${PY_FLAVOR
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}django42>=2.2:www/py-django42@${PY_FLAVOR}\
 		${PYTHON_PKGNAMEPREFIX}django-js-asset>0:www/py-django-js-asset@${PY_FLAVOR}
 
-USES=		python:3.9+
+USES=		python:3.10+ # www/py-django-js-asset requires Python 3.10+
 USE_PYTHON=	autoplist pep517
 
 NO_ARCH=		yes