diff --git a/math/R-cran-locfit/Makefile b/math/R-cran-locfit/Makefile
index 241ef4419179..b8c654dd6495 100644
--- a/math/R-cran-locfit/Makefile
+++ b/math/R-cran-locfit/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	locfit
-DISTVERSION=	1.5-9.6
+DISTVERSION=	1.5-9.7
 CATEGORIES=	math
 DISTNAME=	${PORTNAME}_${DISTVERSION}
 
@@ -9,6 +9,6 @@ WWW=		https://cran.r-project.org/package=locfit
 
 LICENSE=	GPLv2+
 
-USES=		cran:compiles
+USES=		compiler:c++17-lang cran:compiles
 
 .include <bsd.port.mk>
diff --git a/math/R-cran-locfit/distinfo b/math/R-cran-locfit/distinfo
index 6b0c79ad245f..cf5a3f31686f 100644
--- a/math/R-cran-locfit/distinfo
+++ b/math/R-cran-locfit/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1657807865
-SHA256 (locfit_1.5-9.6.tar.gz) = 1ee89e4003cb769feae61ada7ac0a971df30644824f7ed84a21dd5719f713476
-SIZE (locfit_1.5-9.6.tar.gz) = 200986
+TIMESTAMP = 1672674024
+SHA256 (locfit_1.5-9.7.tar.gz) = 48e5fcd089fbc609d8e4c62c390425fba1dd167ad95ae0bddc175cbbe1517aff
+SIZE (locfit_1.5-9.7.tar.gz) = 201008