diff --git a/www/srt/Makefile b/www/srt/Makefile
index eb70bd66c73a..5470185ad604 100644
--- a/www/srt/Makefile
+++ b/www/srt/Makefile
@@ -1,53 +1,48 @@
 PORTNAME=	srt
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.5.4
+DISTVERSION=	1.5.5
 CATEGORIES=	www
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Secure Reliable Transport (SRT) Protocol
 WWW=		https://www.srtalliance.org/
 
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	bash:shells/bash
+TEST_DEPENDS=	googletest>=0:devel/googletest
 
-USES=		cmake compiler:c++11-lang pathfix shebangfix
+USES=		cmake:testing compiler:c++17-lang pathfix shebangfix
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	Haivision
 
 SHEBANG_FILES=	scripts/srt-ffplay
 
-# CMAKE_TESTING_ON=	ENABLE_TESTING \
-#			ENABLE_UNITTESTS
-# 1 test fails when net.inet6.ip6.v6only=1
-# https://github.com/Haivision/srt/issues/2389
-# tests fail to compile,
-# https://github.com/Haivision/srt/issues/2796
-# https://github.com/Haivision/srt/issues/2758
+CMAKE_TESTING_ON=	ENABLE_TESTING \
+			ENABLE_UNITTESTS
+CMAKE_TESTING_JOBS=	1
 
 CMAKE_OFF=		CMAKE_CXX_EXTENSIONS \
 			ENABLE_STATIC
 CMAKE_ON=		ENABLE_SHOW_PROJECT_CONFIG
+.if defined(WITH_DEBUG)
+CMAKE_ON+=		ENABLE_DEBUG
+.endif
+.if make(test)
+CMAKE_ARGS=		-DUSE_CXX_STD=c++17
+.endif
 
-OPTIONS_DEFINE=		HEAVY_LOGGING
 OPTIONS_RADIO=		CRYPTO
-OPTIONS_RADIO_CRYPTO=	GNUTLS NONE OPENSSL
+OPTIONS_RADIO_CRYPTO=	GNUTLS OPENSSL
 OPTIONS_DEFAULT=	OPENSSL
 
-HEAVY_LOGGING_DESC=	Enable heavy logging (only for debugging)
-NONE_DESC=		No encryption support
-
 GNUTLS_LIB_DEPENDS=	libgnutls.so:security/gnutls \
 			libnettle.so:security/nettle
 GNUTLS_CMAKE_ON=	-DUSE_ENCLIB=gnutls
 
-HEAVY_LOGGING_CMAKE_BOOL=	ENABLE_HEAVY_LOGGING # may also need srt_setloglevel(LOG_DEBUG) in/after srt_startup() call
-
-NONE_CMAKE_ON=		-DENABLE_ENCRYPTION=OFF
-
 OPENSSL_USES=		ssl
 OPENSSL_CMAKE_ON=	-DUSE_ENCLIB=openssl
 
 .include <bsd.port.mk>
diff --git a/www/srt/distinfo b/www/srt/distinfo
index 3cb9003e9731..be2ad5839359 100644
--- a/www/srt/distinfo
+++ b/www/srt/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1731706792
-SHA256 (Haivision-srt-v1.5.4_GH0.tar.gz) = d0a8b600fe1b4eaaf6277530e3cfc8f15b8ce4035f16af4a5eb5d4b123640cdd
-SIZE (Haivision-srt-v1.5.4_GH0.tar.gz) = 1743040
+TIMESTAMP = 1779014403
+SHA256 (Haivision-srt-v1.5.5_GH0.tar.gz) = c3518bc43a71b5289032395b2db4c3e09e73d78b54247d56c14553a503b491cf
+SIZE (Haivision-srt-v1.5.5_GH0.tar.gz) = 1776410
diff --git a/www/srt/pkg-plist b/www/srt/pkg-plist
index 0792466e36b6..8ca461683b24 100644
--- a/www/srt/pkg-plist
+++ b/www/srt/pkg-plist
@@ -1,15 +1,15 @@
 bin/srt-ffplay
 bin/srt-file-transmit
 bin/srt-live-transmit
 bin/srt-tunnel
 include/srt/access_control.h
 include/srt/logging_api.h
 include/srt/platform_sys.h
 include/srt/srt.h
 include/srt/udt.h
 include/srt/version.h
 lib/libsrt.so
 lib/libsrt.so.1.5
-lib/libsrt.so.1.5.4
+lib/libsrt.so.1.5.5
 libdata/pkgconfig/haisrt.pc
 libdata/pkgconfig/srt.pc