diff --git a/net/libnpupnp/Makefile b/net/libnpupnp/Makefile
index e41c8772aa80..65c17f4ee444 100644
--- a/net/libnpupnp/Makefile
+++ b/net/libnpupnp/Makefile
@@ -1,23 +1,23 @@
 PORTNAME=	libnpupnp
-DISTVERSION=	5.0.1
+DISTVERSION=	5.1.2
 CATEGORIES=	net
 MASTER_SITES=	https://www.lesbonscomptes.com/upmpdcli/downloads/
 
 MAINTAINER=	diizzy@FreeBSD.org
 COMMENT=	C++ base UPnP library, derived from Portable UPnP, a.k.a libupnp
 WWW=		https://www.lesbonscomptes.com/upmpdcli/npupnp-doc/libnpupnp.html
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libcurl.so:ftp/curl \
 		libexpat.so:textproc/expat2 \
 		libmicrohttpd.so:www/libmicrohttpd
 
-USES=		compiler:c++14-lang libtool localbase pkgconfig
+USES=		compiler:c++17-lang libtool localbase pkgconfig
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 
 INSTALL_TARGET=	install-strip
 
 .include <bsd.port.mk>
diff --git a/net/libnpupnp/distinfo b/net/libnpupnp/distinfo
index b1702e20429b..58472c5af7cd 100644
--- a/net/libnpupnp/distinfo
+++ b/net/libnpupnp/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1678133892
-SHA256 (libnpupnp-5.0.1.tar.gz) = 3fbc2a63e12c0db2235926017e82e78037278a3ec7f97e1a4e160a5db3576a1c
-SIZE (libnpupnp-5.0.1.tar.gz) = 553258
+TIMESTAMP = 1701541778
+SHA256 (libnpupnp-5.1.2.tar.gz) = c1be8b2f654ef520791fbfaf13006fdd84522e6480a3126006e40caceea23552
+SIZE (libnpupnp-5.1.2.tar.gz) = 554806
diff --git a/net/libnpupnp/pkg-plist b/net/libnpupnp/pkg-plist
index 52aa9b92b840..a3595cc84a06 100644
--- a/net/libnpupnp/pkg-plist
+++ b/net/libnpupnp/pkg-plist
@@ -1,12 +1,12 @@
 include/npupnp/UpnpGlobal.h
 include/npupnp/UpnpInet.h
 include/npupnp/netif.h
 include/npupnp/upnp.h
 include/npupnp/upnpconfig.h
 include/npupnp/upnpdebug.h
 include/npupnp/upnpdescription.h
 include/npupnp/upnptools.h
 lib/libnpupnp.so
-lib/libnpupnp.so.9
-lib/libnpupnp.so.9.1.0
+lib/libnpupnp.so.12
+lib/libnpupnp.so.12.0.0
 libdata/pkgconfig/libnpupnp.pc