diff --git a/devel/cli11/Makefile b/devel/cli11/Makefile
index 26955f082a10..372ca9e4dc31 100644
--- a/devel/cli11/Makefile
+++ b/devel/cli11/Makefile
@@ -1,27 +1,27 @@
 PORTNAME=	cli11
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.3.2
+DISTVERSION=	2.4.0
 CATEGORIES=	devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Command line parser for C++11 and beyond
 WWW=		https://github.com/CLIUtils/CLI11
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 TEST_DEPENDS=	${LOCALBASE}/include/boost/optional.hpp:devel/boost-libs \
 		catch>0:devel/catch # fails with catch2-3.x, see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267078
 
 USES=		cmake:testing compiler:c++11-lang
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	CLIUtils
 GH_PROJECT=	CLI11
 
 CMAKE_OFF=	BUILD_TESTING CLI11_BUILD_EXAMPLES
 CMAKE_TESTING_ON=	BUILD_TESTING # CLI11_BOOST # tests fail with Boost, see https://github.com/CLIUtils/CLI11/issues/645
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/cli11/distinfo b/devel/cli11/distinfo
index 226c41c1e19e..cda6717652d7 100644
--- a/devel/cli11/distinfo
+++ b/devel/cli11/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1672866676
-SHA256 (CLIUtils-CLI11-v2.3.2_GH0.tar.gz) = aac0ab42108131ac5d3344a9db0fdf25c4db652296641955720a4fbe52334e22
-SIZE (CLIUtils-CLI11-v2.3.2_GH0.tar.gz) = 303507
+TIMESTAMP = 1707201766
+SHA256 (CLIUtils-CLI11-v2.4.0_GH0.tar.gz) = d2ce8d5318d2a7a7d1120e2a18caac49cd65423d5d4158cbbc0267e6768af522
+SIZE (CLIUtils-CLI11-v2.4.0_GH0.tar.gz) = 338628
diff --git a/devel/cli11/pkg-plist b/devel/cli11/pkg-plist
index 28168057827d..1426132975ad 100644
--- a/devel/cli11/pkg-plist
+++ b/devel/cli11/pkg-plist
@@ -1,25 +1,29 @@
 include/CLI/App.hpp
+include/CLI/Argv.hpp
 include/CLI/CLI.hpp
 include/CLI/Config.hpp
 include/CLI/ConfigFwd.hpp
+include/CLI/Encoding.hpp
 include/CLI/Error.hpp
 include/CLI/Formatter.hpp
 include/CLI/FormatterFwd.hpp
 include/CLI/Macros.hpp
 include/CLI/Option.hpp
 include/CLI/Split.hpp
 include/CLI/StringTools.hpp
 include/CLI/Timer.hpp
 include/CLI/TypeTools.hpp
 include/CLI/Validators.hpp
 include/CLI/Version.hpp
 include/CLI/impl/App_inl.hpp
+include/CLI/impl/Argv_inl.hpp
 include/CLI/impl/Config_inl.hpp
+include/CLI/impl/Encoding_inl.hpp
 include/CLI/impl/Formatter_inl.hpp
 include/CLI/impl/Option_inl.hpp
 include/CLI/impl/Split_inl.hpp
 include/CLI/impl/StringTools_inl.hpp
 include/CLI/impl/Validators_inl.hpp
+libdata/pkgconfig/CLI11.pc
 share/cmake/CLI11/CLI11Config.cmake
 share/cmake/CLI11/CLI11ConfigVersion.cmake
-share/pkgconfig/CLI11.pc