diff --git a/textproc/rubygem-prism/Makefile b/textproc/rubygem-prism/Makefile
index 81fe028b7385..be7fbd3a324c 100644
--- a/textproc/rubygem-prism/Makefile
+++ b/textproc/rubygem-prism/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	prism
-PORTVERSION=	0.17.1
+PORTVERSION=	0.18.0
 CATEGORIES=	textproc rubygems
 MASTER_SITES=	RG
 
diff --git a/textproc/rubygem-prism/distinfo b/textproc/rubygem-prism/distinfo
index ef5bb98d5aaa..b373519dd0f3 100644
--- a/textproc/rubygem-prism/distinfo
+++ b/textproc/rubygem-prism/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1699774918
-SHA256 (rubygem/prism-0.17.1.gem) = e63f86df2c36aecd578431ee0c9d1f66cdef98a406f0a11e7da949514212cbcd
-SIZE (rubygem/prism-0.17.1.gem) = 370688
+TIMESTAMP = 1701364494
+SHA256 (rubygem/prism-0.18.0.gem) = bae73ccaed950e830e136be38cdb9461f9f645f8ef306217ff1d66ff83eb589c
+SIZE (rubygem/prism-0.18.0.gem) = 388096
diff --git a/textproc/rubygem-prism/files/patch-ext-prism-extconf.rb b/textproc/rubygem-prism/files/patch-ext-prism-extconf.rb
index 65d59ad47df7..aa5b38e834d2 100644
--- a/textproc/rubygem-prism/files/patch-ext-prism-extconf.rb
+++ b/textproc/rubygem-prism/files/patch-ext-prism-extconf.rb
@@ -1,11 +1,11 @@
---- ext/prism/extconf.rb.orig	2023-10-05 01:08:46 UTC
+--- ext/prism/extconf.rb.orig	2023-12-01 12:09:54 UTC
 +++ ext/prism/extconf.rb
-@@ -75,7 +75,7 @@ module Prism
-             # normally we package up the configure and other files in the gem itself
-             system("templates/template.rb", exception: true)
-           end
--          system("make", target, exception: true)
-+          system("gmake", target, exception: true)
-         end
-       end
+@@ -34,7 +34,7 @@ def make(target)
+       system("templates/template.rb", exception: true)
+     end
+ 
+-    system("make", target, exception: true)
++    system("gmake", target, exception: true)
+   end
+ end