diff --git a/graphics/py-blockdiag/Makefile b/graphics/py-blockdiag/Makefile
index 9c7aa1dc2b8c..66fb3731b3d5 100644
--- a/graphics/py-blockdiag/Makefile
+++ b/graphics/py-blockdiag/Makefile
@@ -1,68 +1,68 @@
 # Created by: TAKATSU Tomonari <tota@FreeBSD.org>
 
 PORTNAME=	blockdiag
-PORTVERSION=	2.0.1
+PORTVERSION=	3.0.0
 CATEGORIES=	graphics python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	tota@FreeBSD.org
 COMMENT=	Simple block-diagram image generator
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PY_PILLOW} \
-		${PYTHON_PKGNAMEPREFIX}funcparserlib>=0.3.6:devel/py-funcparserlib@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}funcparserlib>=1.0.0:devel/py-funcparserlib@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}webcolors>=0:graphics/py-webcolors@${PY_FLAVOR}
 
-USES=		python:3.5+
+USES=		python:3.7+
 USE_PYTHON=	autoplist distutils
 
 DOCSDIR=	${PREFIX}/share/doc/${PKGNAMEPREFIX}${PORTNAME}
 EXAMPLESDIR=	${PREFIX}/share/examples/${PKGNAMEPREFIX}${PORTNAME}
 
 PORTDOCS=	README.rst
 PORTEXAMPLES=	*
 
 OPTIONS_DEFINE=	DOCS EXAMPLES PDF
 OPTIONS_DEFAULT=	PDF
 
 OPTIONS_RADIO=	FONT
 OPTIONS_RADIO_FONT=	IPA MPLUSIPA VLGOTHIC
 
 IPA_DESC=	Use IPA Font as default
 MPLUSIPA_DESC=	Use M-plus IPA Font as default
 VLGOTHIC_DESC=	Use VLGothic Font as default
 PDF_DESC=	Enable PDF output
 
 IPA_RUN_DEPENDS=	${LOCALBASE}/share/fonts/ipa/ipagp.otf:japanese/font-ipa
 MPLUSIPA_RUN_DEPENDS=	${LOCALBASE}/share/fonts/mplus-ipa/fonts/ipagp.ttf:japanese/font-mplus-ipa
 VLGOTHIC_RUN_DEPENDS=	${LOCALBASE}/share/fonts/vlgothic/VL-PGothic-Regular.ttf:japanese/font-vlgothic
 PDF_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}reportlab>0:print/py-reportlab@${PY_FLAVOR}
 
 post-patch:
 	${REINPLACE_CMD} 's|%%LOCALBASE%%|${LOCALBASE}|' ${WRKSRC}/src/blockdiag/utils/bootstrap.py
 
 post-patch-IPA-on:
 	${REINPLACE_CMD} '/fontfiles = \[/,/\]/{/fontfiles = \[/H;/ipagp\.otf/H;/\]/H;/\]/!d;g;}' ${WRKSRC}/src/blockdiag/utils/bootstrap.py
 
 post-patch-MPLUSIPA-on:
 	${REINPLACE_CMD} '/fontfiles = \[/,/\]/{/fontfiles = \[/H;/ipagp\.ttf/H;/\]/H;/\]/!d;g;}' ${WRKSRC}/src/blockdiag/utils/bootstrap.py
 
 post-patch-VLGOTHIC-on:
 	${REINPLACE_CMD} '/fontfiles = \[/,/\]/{/fontfiles = \[/H;/VL-PGothic-Regular\.ttf/H;/\]/H;/\]/!d;g;}' ${WRKSRC}/src/blockdiag/utils/bootstrap.py
 
 post-install:
 	${INSTALL_MAN} ${WRKSRC}/${PORTNAME}.1 ${STAGEDIR}${PREFIX}/man/man1/
 	@${ECHO_CMD} man/man1/${PORTNAME}.1.gz >> ${TMPPLIST}
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${INSTALL_WRKSRC}/${PORTDOCS} ${STAGEDIR}${DOCSDIR}
 
 post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA} ${INSTALL_WRKSRC}/examples/${PORTEXAMPLES} ${STAGEDIR}${EXAMPLESDIR}
 
 .include <bsd.port.mk>
diff --git a/graphics/py-blockdiag/distinfo b/graphics/py-blockdiag/distinfo
index a5d92e27ac23..0962683382b4 100644
--- a/graphics/py-blockdiag/distinfo
+++ b/graphics/py-blockdiag/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1584005269
-SHA256 (blockdiag-2.0.1.tar.gz) = 16a69dd9f3b44c9e0869999ce82aa968586698febc86ece9ca0c902dba772397
-SIZE (blockdiag-2.0.1.tar.gz) = 2694776
+TIMESTAMP = 1638928831
+SHA256 (blockdiag-3.0.0.tar.gz) = dee4195bb87d23654546ba2bf5091480dbf253b409891fce2cd527c91d00a3e2
+SIZE (blockdiag-3.0.0.tar.gz) = 2694464
diff --git a/graphics/py-blockdiag/files/patch-src-blockdiag-utils-bootstrap.py b/graphics/py-blockdiag/files/patch-src-blockdiag-utils-bootstrap.py
index 1a3097795e4b..8ccdf1294ad1 100644
--- a/graphics/py-blockdiag/files/patch-src-blockdiag-utils-bootstrap.py
+++ b/graphics/py-blockdiag/files/patch-src-blockdiag-utils-bootstrap.py
@@ -1,15 +1,15 @@
---- src/blockdiag/utils/bootstrap.py.orig	2020-02-01 09:48:17 UTC
+--- src/blockdiag/utils/bootstrap.py.orig	2021-12-06 16:43:47 UTC
 +++ src/blockdiag/utils/bootstrap.py
 @@ -255,11 +255,7 @@ class Options(object):
  def detectfont(options):
      import glob
      fontdirs = [
 -        '/usr/share/fonts',
 -        '/Library/Fonts',
 -        '/System/Library/Fonts',
 -        'c:/windows/fonts',
 -        '/usr/local/share/font-*',
-+        '/usr/local/share/fonts',
++        '%%LOCALBASE%%/share/fonts',
      ]
      fontfiles = [
          'ipagp.ttf',