diff --git a/www/cpp-httplib/Makefile b/www/cpp-httplib/Makefile
index 6d47a8f7604b..9c2417b01398 100644
--- a/www/cpp-httplib/Makefile
+++ b/www/cpp-httplib/Makefile
@@ -1,54 +1,60 @@
 PORTNAME=	cpp-httplib
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.37.2
+DISTVERSION=	0.40.0
 CATEGORIES=	www devel
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ header-only HTTP/HTTPS server and client library
 WWW=		https://github.com/yhirose/cpp-httplib
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BROKEN_FreeBSD_13=	configure fails: OpenSSL is too old: Found unsuitable version "1.1.1t", but required is at least "3.0.0"
 
 TEST_DEPENDS=	gmake:devel/gmake
 
 USES=		cmake localbase:ldflags python:test # localbase only for tests
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	yhirose
 
 CMAKE_ON=	HTTPLIB_REQUIRE_ZLIB
 
 NO_ARCH=	yes
 
 BINARY_ALIAS=	python3=${PYTHON_CMD} # only for tests
 
 PLIST_FILES=	include/httplib.h \
 		lib/cmake/httplib/FindBrotli.cmake \
 		share/doc/httplib/README.md \
 		lib/cmake/httplib/httplibConfig.cmake \
 		lib/cmake/httplib/httplibConfigVersion.cmake \
 		lib/cmake/httplib/httplibTargets.cmake
 
 CONFLICTS_BUILD=	googletest # should be CONFLICTS_TEST
 
 OPTIONS_DEFINE=		BROTLI SSL
 OPTIONS_DEFAULT=	BROTLI SSL
 
 BROTLI_CMAKE_BOOL=	HTTPLIB_REQUIRE_BROTLI HTTPLIB_USE_BROTLI_IF_AVAILABLE
 BROTLI_BUILD_DEPENDS=	brotli>0:archivers/brotli
 BROTLI_RUN_DEPENDS=	brotli>0:archivers/brotli
 
 SSL_USES=		ssl
 SSL_CMAKE_BOOL=		HTTPLIB_REQUIRE_OPENSSL HTTPLIB_USE_OPENSSL_IF_AVAILABLE
 
 do-test:
 	@cd ${WRKSRC}/test && ${SETENV} ${MAKE_ENV} ${GMAKE} CXXFLAGS="${CXXFLAGS} -I${WRKSRC}/test" LDFLAGS="${LDFLAGS}"
 
 # tests as of 0.35.0:
 # [==========] 611 tests from 132 test suites ran. (192695 ms total)
 # [  PASSED  ] 611 tests.
 
+# tests as of 0.40.0
+#[  FAILED  ] 1 test, listed below:
+#[  FAILED  ] WebSocketIntegrationTest.SocketSettings
+#
+# 1 FAILED TEST
+
 .include <bsd.port.mk>
diff --git a/www/cpp-httplib/distinfo b/www/cpp-httplib/distinfo
index db59d4b7ae0d..cccb039b8ef2 100644
--- a/www/cpp-httplib/distinfo
+++ b/www/cpp-httplib/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1773510137
-SHA256 (yhirose-cpp-httplib-v0.37.2_GH0.tar.gz) = 909766cd7697153c9e588b0f96defe1868b7bb11d94b8d4f0c83bb4875bc9066
-SIZE (yhirose-cpp-httplib-v0.37.2_GH0.tar.gz) = 1454724
+TIMESTAMP = 1774757364
+SHA256 (yhirose-cpp-httplib-v0.40.0_GH0.tar.gz) = b52ecaebf0f94086c8b3305650412359d920c5267f6d9ce87f883198783af678
+SIZE (yhirose-cpp-httplib-v0.40.0_GH0.tar.gz) = 1777384