diff --git a/cad/netgen-lvs/Makefile b/cad/netgen-lvs/Makefile
index 817e08e05116..249d626339c0 100644
--- a/cad/netgen-lvs/Makefile
+++ b/cad/netgen-lvs/Makefile
@@ -1,32 +1,32 @@
 PORTNAME=	netgen
-DISTVERSION=	1.5.178
+DISTVERSION=	1.5.181
 CATEGORIES=	cad
 PKGNAMESUFFIX=	-lvs
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Tool for comparing netlists (a process known as LVS)
 
 LICENSE=	GPLv1
 LICENSE_FILE=	${WRKSRC}/Copying
 
 RUN_DEPENDS=	bash:shells/bash
 
 USES=		gmake python:3.6+ shebangfix tar:tgz tcl tk xorg
 USE_XORG=	x11
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	RTimothyEdwards
 
 SHEBANG_FILES=	tcltk/netgen.sh.in
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	HAVE_PYTHON3=yes
 CONFIGURE_ARGS=	--with-interpreter=tcl --with-tcl=${LOCALBASE}/lib/tcl8.6 --with-tk=${LOCALBASE}/lib/tk8.6 --with-x
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|^#!/bin/env python3$$|#!${PYTHON_CMD}|' ${WRKSRC}/python/*.py
 
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PREFIX}/lib/netgen/tcl/netgenexec ${STAGEDIR}${PREFIX}/lib/netgen/tcl/tclnetgen.so
 
 .include <bsd.port.mk>
diff --git a/cad/netgen-lvs/distinfo b/cad/netgen-lvs/distinfo
index 44d512b17d68..891573a4e392 100644
--- a/cad/netgen-lvs/distinfo
+++ b/cad/netgen-lvs/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1621961053
-SHA256 (RTimothyEdwards-netgen-1.5.178_GH0.tar.gz) = 745648f299beba96967382638631f4c4064b6f1c8d8599147655dedf8a9e242a
-SIZE (RTimothyEdwards-netgen-1.5.178_GH0.tar.gz) = 526070
+TIMESTAMP = 1622433697
+SHA256 (RTimothyEdwards-netgen-1.5.181_GH0.tar.gz) = 15f1451d0afde9504bf8c0e2728e11d7cd26f97fc41e8ea89748614847c81f8c
+SIZE (RTimothyEdwards-netgen-1.5.181_GH0.tar.gz) = 526232