diff --git a/devel/rubygem-memoizable/Makefile b/devel/rubygem-memoizable/Makefile
index 36839a8b00c5..cb94e55fd579 100644
--- a/devel/rubygem-memoizable/Makefile
+++ b/devel/rubygem-memoizable/Makefile
@@ -1,19 +1,17 @@
 PORTNAME=	memoizable
-PORTVERSION=	0.4.2
+PORTVERSION=	0.5.1
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Memoize method return values
 WWW=		https://github.com/dkubb/memoizable
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
-RUN_DEPENDS=	rubygem-thread_safe>=0.3.1<1:devel/rubygem-thread_safe
-
 USES=		gem
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/rubygem-memoizable/distinfo b/devel/rubygem-memoizable/distinfo
index a4ffda9dd712..b47b6e22fd71 100644
--- a/devel/rubygem-memoizable/distinfo
+++ b/devel/rubygem-memoizable/distinfo
@@ -1,2 +1,3 @@
-SHA256 (rubygem/memoizable-0.4.2.gem) = acf4d2280fea019318e61cfc5e69077dcb3c2126817ee596ffd76d0ddf5e826c
-SIZE (rubygem/memoizable-0.4.2.gem) = 13312
+TIMESTAMP = 1773967062
+SHA256 (rubygem/memoizable-0.5.1.gem) = 2a69ecb3e37f3549e4f350a4d3c4ca25878fea31cfe1086942acc9348646450b
+SIZE (rubygem/memoizable-0.5.1.gem) = 11264