diff --git a/devel/rubygem-dynflow/Makefile b/devel/rubygem-dynflow/Makefile
index ce13c5d8efd8..8a7f162e6c88 100644
--- a/devel/rubygem-dynflow/Makefile
+++ b/devel/rubygem-dynflow/Makefile
@@ -1,24 +1,25 @@
 PORTNAME=	dynflow
-PORTVERSION=	1.5.0
+PORTVERSION=	1.6.1
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	ruby@FreeBSD.org
 COMMENT=	Ruby workflow/orchestration engine
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/MIT-LICENSE
 
 RUN_DEPENDS=	rubygem-algebrick>=0.7.0<0.8:devel/rubygem-algebrick \
 		rubygem-apipie-params>=0:devel/rubygem-apipie-params \
 		rubygem-concurrent-ruby>=1.1.3<1.2:devel/rubygem-concurrent-ruby \
 		rubygem-concurrent-ruby-edge>=0.6.0<0.7:devel/rubygem-concurrent-ruby-edge \
+		rubygem-msgpack>=1.3.3<2:devel/rubygem-msgpack \
 		rubygem-multi_json>=0:devel/rubygem-multi_json \
 		rubygem-sequel>=4.0.0:devel/rubygem-sequel
 
 USES=		gem
 USE_RUBY=	yes
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/rubygem-dynflow/distinfo b/devel/rubygem-dynflow/distinfo
index fb6592f87983..a567590dbb1a 100644
--- a/devel/rubygem-dynflow/distinfo
+++ b/devel/rubygem-dynflow/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1624630280
-SHA256 (rubygem/dynflow-1.5.0.gem) = 7c73367bb693c6ee9372c83109d701d3cd2ee0802b002fb11cca46c10e3a36f4
-SIZE (rubygem/dynflow-1.5.0.gem) = 980480
+TIMESTAMP = 1632664556
+SHA256 (rubygem/dynflow-1.6.1.gem) = 3bae318099859f385b6425b0f319a90f3a4a3d46048ffe6209386e5b754da919
+SIZE (rubygem/dynflow-1.6.1.gem) = 986112
diff --git a/devel/rubygem-dynflow/files/patch-gemspec b/devel/rubygem-dynflow/files/patch-gemspec
new file mode 100644
index 000000000000..1b28aec4c740
--- /dev/null
+++ b/devel/rubygem-dynflow/files/patch-gemspec
@@ -0,0 +1,11 @@
+--- dynflow.gemspec.orig	2021-09-26 15:29:02 UTC
++++ dynflow.gemspec
+@@ -24,7 +24,7 @@ Gem::Specification.new do |s|
+ 
+     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
+       s.add_runtime_dependency(%q<multi_json>.freeze, [">= 0"])
+-      s.add_runtime_dependency(%q<msgpack>.freeze, ["~> 1.3.3"])
++      s.add_runtime_dependency(%q<msgpack>.freeze, ["~> 1.3", ">= 1.3.3"])
+       s.add_runtime_dependency(%q<apipie-params>.freeze, [">= 0"])
+       s.add_runtime_dependency(%q<algebrick>.freeze, ["~> 0.7.0"])
+       s.add_runtime_dependency(%q<concurrent-ruby>.freeze, ["~> 1.1.3"])