diff --git a/devel/py-nbconvert/Makefile b/devel/py-nbconvert/Makefile
index d0684c1d5b68..e95b3602d877 100644
--- a/devel/py-nbconvert/Makefile
+++ b/devel/py-nbconvert/Makefile
@@ -1,33 +1,34 @@
 PORTNAME=	nbconvert
-PORTVERSION=	6.4.4
+PORTVERSION=	6.4.5
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	python@FreeBSD.org
 COMMENT=	Converting Jupyter Notebooks
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}beautifulsoup>=0:www/py-beautifulsoup@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}bleach>=0:www/py-bleach@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}defusedxml>=0:devel/py-defusedxml@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}entrypoints>=0.2.2:devel/py-entrypoints@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}Jinja2>=2.4:devel/py-Jinja2@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}jupyter-core>=0:devel/py-jupyter-core@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}jupyterlab-pygments>=0:textproc/py-jupyterlab-pygments@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}markupsafe>=2.0:textproc/py-markupsafe@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}mistune>=0.8.1<2:textproc/py-mistune@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}nbclient>=0.5.0<0.6.0:devel/py-nbclient@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}nbformat>=4.4:devel/py-nbformat@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pandocfilters>=1.4.1:textproc/py-pandocfilters@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pygments>=2.4.1:textproc/py-pygments@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}testpath>=0:devel/py-testpath@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}traitlets>=5.0:devel/py-traitlets@${PY_FLAVOR}
 
 USES=		python:3.7+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/py-nbconvert/distinfo b/devel/py-nbconvert/distinfo
index 780c06bad0c1..496275dd6ade 100644
--- a/devel/py-nbconvert/distinfo
+++ b/devel/py-nbconvert/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1647264990
-SHA256 (nbconvert-6.4.4.tar.gz) = ee0dfe34bbd1082ac9bfc750aae3c73fcbc34a70c5574c6986ff83c10a3541fd
-SIZE (nbconvert-6.4.4.tar.gz) = 906988
+TIMESTAMP = 1649423972
+SHA256 (nbconvert-6.4.5.tar.gz) = 21163a8e2073c07109ca8f398836e45efdba2aacea68d6f75a8a545fef070d4e
+SIZE (nbconvert-6.4.5.tar.gz) = 906309