diff -ruN dns/knot2.old/Makefile dns/knot2/Makefile
--- dns/knot2.old/Makefile	2016-10-27 09:23:29.668978310 +0000
+++ dns/knot2/Makefile	2016-10-27 09:23:49.159642483 +0000
@@ -2,7 +2,7 @@
 # $FreeBSD: head/dns/knot2/Makefile 424411 2016-10-21 12:51:40Z mat $
 
 PORTNAME=	knot
-PORTVERSION=	2.3.0
+PORTVERSION=	2.3.1
 CATEGORIES=	dns ipv6
 MASTER_SITES=	https://secure.nic.cz/files/knot-dns/ \
 		http://dns-lab.com/downloads/knot-dns/
diff -ruN dns/knot2.old/distinfo dns/knot2/distinfo
--- dns/knot2.old/distinfo	2016-10-27 09:23:29.668978310 +0000
+++ dns/knot2/distinfo	2016-10-27 09:23:54.464976564 +0000
@@ -1,3 +1,3 @@
-TIMESTAMP = 1470789106
-SHA256 (knot-2.3.0.tar.xz) = 8abf9a6562ecf2f7f4222d16ca6c75463399870db360eda7caa40530b469533c
-SIZE (knot-2.3.0.tar.xz) = 1066852
+TIMESTAMP = 1477560234
+SHA256 (knot-2.3.1.tar.xz) = 42e4ec64dc8f017329d1753eb074a5759d6bb380e1f2a272101adccc0552f9b4
+SIZE (knot-2.3.1.tar.xz) = 1072808
diff -ruN dns/knot2.old/pkg-plist dns/knot2/pkg-plist
--- dns/knot2.old/pkg-plist	2016-10-27 09:23:29.668978310 +0000
+++ dns/knot2/pkg-plist	2016-10-27 09:24:49.595972462 +0000
@@ -72,8 +72,8 @@
 lib/libdnssec.so.2.0.0
 lib/libknot.a
 lib/libknot.so
-lib/libknot.so.3
-lib/libknot.so.3.0.0
+lib/libknot.so.4
+lib/libknot.so.4.0.0
 lib/libzscanner.a
 lib/libzscanner.so
 lib/libzscanner.so.1
@@ -95,4 +95,4 @@
 sbin/keymgr
 sbin/knotc
 sbin/knotd
-sbin/kzonecheck
+bin/kzonecheck