diff --git a/math/octave-forge-stk/Makefile b/math/octave-forge-stk/Makefile
index 40d1279727b9..0361df1d04c0 100644
--- a/math/octave-forge-stk/Makefile
+++ b/math/octave-forge-stk/Makefile
@@ -1,19 +1,18 @@
 PORTNAME=	octave-forge-stk
-PORTVERSION=	2.8.0
-PORTREVISION=	2
+PORTVERSION=	2.8.1
 CATEGORIES=	math
-MASTER_SITES=	https://github.com/stk-kriging/stk/releases/download/2.8.0/
+MASTER_SITES=	https://github.com/stk-kriging/stk/releases/download/${PORTVERSION}/
 DISTNAME=	${OCTAVE_PKGNAME}-${DISTVERSIONFULL}-octpkg
 
 MAINTAINER=	stephen@FreeBSD.org
 COMMENT=	Octave-forge package ${OCTAVE_PKGNAME}
 WWW=		https://packages.octave.org/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKDIR}/${OCTAVE_SRC}/COPYING
 
 USES=		octave
 
 OCTAVE_SRC=		${OCTAVE_PKGNAME}
 
 .include <bsd.port.mk>
diff --git a/math/octave-forge-stk/distinfo b/math/octave-forge-stk/distinfo
index 7291b33f4273..baf1c36a4f18 100644
--- a/math/octave-forge-stk/distinfo
+++ b/math/octave-forge-stk/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1673234645
-SHA256 (octave-forge/stk-2.8.0-octpkg.tar.gz) = 760c69c362fb7bda3fce29ac2cfa2a5bb7448a1aeb36c92ceb65edb97b78cd32
-SIZE (octave-forge/stk-2.8.0-octpkg.tar.gz) = 388324
+TIMESTAMP = 1688430729
+SHA256 (octave-forge/stk-2.8.1-octpkg.tar.gz) = c138ccf4b51c0bc0448f74cdc40cfcefb2ea26fba8c5652c7bd3c86685869c85
+SIZE (octave-forge/stk-2.8.1-octpkg.tar.gz) = 389336