diff --git a/devel/microsoft-gsl/Makefile b/devel/microsoft-gsl/Makefile
index 3d26a373883f..37774d743d78 100644
--- a/devel/microsoft-gsl/Makefile
+++ b/devel/microsoft-gsl/Makefile
@@ -1,23 +1,23 @@
 PORTNAME=	microsoft-gsl
 DISTVERSIONPREFIX=	v
-DISTVERSION=	3.1.0
+DISTVERSION=	4.0.0
 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 d70e38e3d59d..7d7713b8c134 100644
--- a/devel/microsoft-gsl/distinfo
+++ b/devel/microsoft-gsl/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1620259687
-SHA256 (microsoft-GSL-v3.1.0_GH0.tar.gz) = d3234d7f94cea4389e3ca70619b82e8fb4c2f33bb3a070799f1e18eef500a083
-SIZE (microsoft-GSL-v3.1.0_GH0.tar.gz) = 78196
+TIMESTAMP = 1669076193
+SHA256 (microsoft-GSL-v4.0.0_GH0.tar.gz) = f0e32cb10654fea91ad56bde89170d78cfbf4363ee0b01d8f097de2ba49f6ce9
+SIZE (microsoft-GSL-v4.0.0_GH0.tar.gz) = 55846
diff --git a/devel/microsoft-gsl/pkg-plist b/devel/microsoft-gsl/pkg-plist
index 6ab801141991..5d967e157e9c 100644
--- a/devel/microsoft-gsl/pkg-plist
+++ b/devel/microsoft-gsl/pkg-plist
@@ -1,12 +1,17 @@
+include/gsl/algorithm
+include/gsl/assert
+include/gsl/byte
 include/gsl/gsl
 include/gsl/gsl_algorithm
 include/gsl/gsl_assert
 include/gsl/gsl_byte
+include/gsl/gsl_narrow
 include/gsl/gsl_util
-include/gsl/multi_span
+include/gsl/narrow
 include/gsl/pointers
 include/gsl/span
 include/gsl/span_ext
 include/gsl/string_span
+include/gsl/util
 share/cmake/Microsoft.GSL/Microsoft.GSLConfig.cmake
 share/cmake/Microsoft.GSL/Microsoft.GSLConfigVersion.cmake