diff --git a/net/subnetcalc/Makefile b/net/subnetcalc/Makefile
index 46e256cb63249..253d7cdbef184 100644
--- a/net/subnetcalc/Makefile
+++ b/net/subnetcalc/Makefile
@@ -1,11 +1,11 @@
 PORTNAME=	subnetcalc
-PORTVERSION=	2.4.18
+PORTVERSION=	2.4.23
 CATEGORIES=	net
-MASTER_SITES=	https://www.uni-due.de/~be0001/subnetcalc/download/
+MASTER_SITES=	https://www.nntb.no/~dreibh/subnetcalc/download/
 
-MAINTAINER=	dreibh@iem.uni-due.de
+MAINTAINER=	thomas.dreibholz@gmail.com
 COMMENT=	IPv4/IPv6 Subnet Calculator
-WWW=		https://www.uni-due.de/~be0001/subnetcalc/
+WWW=		https://www.nntb.no/~dreibh/subnetcalc/
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
diff --git a/net/subnetcalc/distinfo b/net/subnetcalc/distinfo
index 5f7f2c09fc1e1..762480bbe06fa 100644
--- a/net/subnetcalc/distinfo
+++ b/net/subnetcalc/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1618747102
-SHA256 (subnetcalc-2.4.18.tar.xz) = 71c0ad72eb31dde3cdcfb76f9fe752eb2d137a49d5d49ee8e2ee80bbeac42c67
-SIZE (subnetcalc-2.4.18.tar.xz) = 128476
+TIMESTAMP = 1701946191
+SHA256 (subnetcalc-2.4.23.tar.xz) = 0bb265e4509306a97e377972f8a00515f50ce253fdc4f027053b8ba14383beb8
+SIZE (subnetcalc-2.4.23.tar.xz) = 128724