diff --git a/textproc/rubygem-prism/Makefile b/textproc/rubygem-prism/Makefile
index 4d08c27f0a43..d8a103034e7c 100644
--- a/textproc/rubygem-prism/Makefile
+++ b/textproc/rubygem-prism/Makefile
@@ -1,18 +1,18 @@
 PORTNAME=	prism
-PORTVERSION=	1.4.0
+PORTVERSION=	1.5.1
 CATEGORIES=	textproc rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Prism Ruby parser
 WWW=		https://ruby.github.io/prism/ \
 		https://github.com/ruby/prism
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 BUILD_DEPENDS=	rubygem-rake>=0:devel/rubygem-rake
 
 USES=		gem gmake
 
 .include <bsd.port.mk>
diff --git a/textproc/rubygem-prism/distinfo b/textproc/rubygem-prism/distinfo
index 6bde2f088af3..e44f5261fcdc 100644
--- a/textproc/rubygem-prism/distinfo
+++ b/textproc/rubygem-prism/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1742405574
-SHA256 (rubygem/prism-1.4.0.gem) = dc0e3e00e93160213dc2a65519d9002a4a1e7b962db57d444cf1a71565bb703e
-SIZE (rubygem/prism-1.4.0.gem) = 632832
+TIMESTAMP = 1759324342
+SHA256 (rubygem/prism-1.5.1.gem) = b40c1b76ccb9fcccc3d1553967cda6e79fa7274d8bfea0d98b15d27a6d187134
+SIZE (rubygem/prism-1.5.1.gem) = 641024