Index: head/devel/py-nbconvert/Makefile
===================================================================
--- head/devel/py-nbconvert/Makefile	(revision 479216)
+++ head/devel/py-nbconvert/Makefile	(revision 479217)
@@ -1,32 +1,33 @@
 # $FreeBSD$
 
 PORTNAME=	nbconvert
-PORTVERSION=	5.3.1
-PORTREVISION=	1
+PORTVERSION=	5.4.0
 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=	${PYTHON_PKGNAMEPREFIX}Jinja2>=0:devel/py-Jinja2@${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} \
 		${PYTHON_PKGNAMEPREFIX}jupyter_client>=4.2:devel/py-jupyter_client@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}jupyter_core>=0:devel/py-jupyter_core@${PY_FLAVOR} \
-		${PYTHON_PKGNAMEPREFIX}mistune>=0.7.4:textproc/py-mistune@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}mistune>=0.8.1:textproc/py-mistune@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}nbformat>=4.4:devel/py-nbformat@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pandocfilters>=1.4.1:textproc/py-pandocfilters@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pygments>=0:textproc/py-pygments@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}testpath>=0:devel/py-testpath@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}traitlets>=4.2:devel/py-traitlets@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	autoplist concurrent distutils
+
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
Index: head/devel/py-nbconvert/distinfo
===================================================================
--- head/devel/py-nbconvert/distinfo	(revision 479216)
+++ head/devel/py-nbconvert/distinfo	(revision 479217)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1507099939
-SHA256 (nbconvert-5.3.1.tar.gz) = 12b1a4671d4463ab73af6e4cbcc965b62254e05d182cd54995dda0d0ef9e2db9
-SIZE (nbconvert-5.3.1.tar.gz) = 516541
+TIMESTAMP = 1536362763
+SHA256 (nbconvert-5.4.0.tar.gz) = a8a2749f972592aa9250db975304af6b7337f32337e523a2c995cc9e12c07807
+SIZE (nbconvert-5.4.0.tar.gz) = 539634