diff --git a/misc/ecflow/Makefile b/misc/ecflow/Makefile
index 5f0a036a251d..06213cac698e 100644
--- a/misc/ecflow/Makefile
+++ b/misc/ecflow/Makefile
@@ -1,41 +1,41 @@
 PORTNAME=	ecflow
-DISTVERSION=	5.12.4
+DISTVERSION=	5.13.0
 CATEGORIES=	misc
 MASTER_SITES=	https://confluence.ecmwf.int/download/attachments/8650755/
 DISTNAME=	ecFlow-${DISTVERSION}-Source
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Workflow package that enables users to run a large number of programs
 WWW=		https://confluence.ecmwf.int/display/ECFLOW/ecflow+home
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 PY_DEPENDS=	${PYTHON_PKGNAMEPREFIX}boost-libs>0:devel/boost-python-libs@${PY_FLAVOR}
 BUILD_DEPENDS=	bash:shells/bash \
 		${PY_DEPENDS}
 LIB_DEPENDS=	libboost_program_options.so:devel/boost-libs
 RUN_DEPENDS=	${PY_DEPENDS}
 
 USES=		cmake compiler:c++17-lang gl localbase perl5 pkgconfig python qt:6 shebangfix ssl
 USE_QT=		5compat base charts svg tools:build
 USE_GL=		gl opengl
 
 SHEBANG_GLOB=	*.sh *.in *.py
 
 CMAKE_OFF=	ENABLE_STATIC_BOOST_LIBS ENABLE_TESTS ENABLE_ALL_TESTS
 
 CXXFLAGS_armv7=	-fPIC # attempt to work around compilation failure, see https://jira.ecmwf.int/browse/SUP-3688
 CXXFLAGS_i386=	-fPIC # attempt to work around compilation failure, see https://jira.ecmwf.int/browse/SUP-3688
 
 CONFLICTS_BUILD=	python27 # build attempts to find python-2.7 and use it
 
 .include <bsd.port.pre.mk>
 
 #post-patch:
 #.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 160
 #	@${REINPLACE_CMD} -e 's|std::binary_function|std::__binary_function|' \
 #		${WRKSRC}/ACore/src/Str.cpp
 #.endif
 
 .include <bsd.port.post.mk>
diff --git a/misc/ecflow/distinfo b/misc/ecflow/distinfo
index 9c7930782ede..257596474106 100644
--- a/misc/ecflow/distinfo
+++ b/misc/ecflow/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1714124637
-SHA256 (ecFlow-5.12.4-Source.tar.gz) = 4ff11e420105ffcff6fa2f9d54682ac9e7f0007b6a7c52d1ce3cd6cd81cebfe5
-SIZE (ecFlow-5.12.4-Source.tar.gz) = 16863928
+TIMESTAMP = 1718929677
+SHA256 (ecFlow-5.13.0-Source.tar.gz) = a14f4e97cc9123bc6cadfb3ecbf3899e27b6deb53058590bba7a4dae12f3e029
+SIZE (ecFlow-5.13.0-Source.tar.gz) = 16918829
diff --git a/misc/ecflow/files/patch-tools_ecflow__standalone.c b/misc/ecflow/files/patch-tools_ecflow__standalone.c
index 65046b4361e9..105c3f053894 100644
--- a/misc/ecflow/files/patch-tools_ecflow__standalone.c
+++ b/misc/ecflow/files/patch-tools_ecflow__standalone.c
@@ -1,11 +1,11 @@
---- tools/ecflow_standalone.c.orig	2022-08-25 05:28:39 UTC
+--- tools/ecflow_standalone.c.orig	2024-06-19 10:20:26 UTC
 +++ tools/ecflow_standalone.c
-@@ -183,7 +183,7 @@ int main(argc,argv) int argc; char **argv;
-      for (n=3; n<65535 ;n++) fclose(n); */
+@@ -85,7 +85,7 @@ pid_t do_setsid(void) {
+ }
  
-   /* create a new session from the child process */
--#if defined(linux) || defined(__APPLE__) || defined(__MACH__) || defined(hpux) || defined(solaris) || defined(SGI) || defined(SVR4) || defined(AIX) || defined(SYG) || defined(alpha)
-+#if defined(linux) || defined(__FreeBSD__) || defined(__APPLE__) || defined(__MACH__) || defined(hpux) || defined(solaris) || defined(SGI) || defined(SVR4) || defined(AIX) || defined(SYG) || defined(alpha)
-   if( setsid() == -1 )
+ pid_t do_setsid(void) {
+-#if defined(linux) || defined(__APPLE__) || defined(__MACH__) || defined(hpux) || defined(solaris) || defined(SGI) || \
++#if defined(linux) || defined(__FreeBSD__) || defined(__APPLE__) || defined(__MACH__) || defined(hpux) || defined(solaris) || defined(SGI) || \
+     defined(SVR4) || defined(AIX) || defined(SYG) || defined(alpha) || defined(__NVCOMPILER)
+     return setsid();
  #else
-   if( setsid(0) == -1 )