diff --git a/devel/microsoft-gsl/Makefile b/devel/microsoft-gsl/Makefile
index f602ed7c454d..c8b41898905c 100644
--- a/devel/microsoft-gsl/Makefile
+++ b/devel/microsoft-gsl/Makefile
@@ -1,24 +1,23 @@
 PORTNAME=	microsoft-gsl
 DISTVERSIONPREFIX=	v
-DISTVERSION=	4.1.0
-PORTREVISION=	2
+DISTVERSION=	4.2.0
 CATEGORIES=	devel
 
 MAINTAINER=	henry.hu.sh@gmail.com
 COMMENT=	Guidelines Support Library
 WWW=		https://github.com/microsoft/GSL
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	microsoft
 GH_PROJECT=	GSL
 
 CMAKE_OFF=	GSL_TEST
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/microsoft-gsl/distinfo b/devel/microsoft-gsl/distinfo
index f1a7f5b34011..2a97ab6ae16b 100644
--- a/devel/microsoft-gsl/distinfo
+++ b/devel/microsoft-gsl/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1732438820
-SHA256 (microsoft-GSL-v4.1.0_GH0.tar.gz) = 0a227fc9c8e0bf25115f401b9a46c2a68cd28f299d24ab195284eb3f1d7794bd
-SIZE (microsoft-GSL-v4.1.0_GH0.tar.gz) = 57901
+TIMESTAMP = 1740975942
+SHA256 (microsoft-GSL-v4.2.0_GH0.tar.gz) = 2c717545a073649126cb99ebd493fa2ae23120077968795d2c69cbab821e4ac6
+SIZE (microsoft-GSL-v4.2.0_GH0.tar.gz) = 62240
diff --git a/devel/microsoft-gsl/pkg-plist b/devel/microsoft-gsl/pkg-plist
index 6250f766c3d8..f9da238decae 100644
--- a/devel/microsoft-gsl/pkg-plist
+++ b/devel/microsoft-gsl/pkg-plist
@@ -1,14 +1,13 @@
 include/gsl/algorithm
 include/gsl/assert
 include/gsl/byte
 include/gsl/gsl
 include/gsl/narrow
 include/gsl/pointers
 include/gsl/span
 include/gsl/span_ext
-include/gsl/string_span
 include/gsl/util
 include/gsl/zstring
 share/cmake/Microsoft.GSL/GSL.natvis
 share/cmake/Microsoft.GSL/Microsoft.GSLConfig.cmake
 share/cmake/Microsoft.GSL/Microsoft.GSLConfigVersion.cmake