diff --git a/devel/rubygem-nio4r/Makefile b/devel/rubygem-nio4r/Makefile
index a0b34b0ee450..1b8f2ca5881a 100644
--- a/devel/rubygem-nio4r/Makefile
+++ b/devel/rubygem-nio4r/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	nio4r
-PORTVERSION=	2.5.8
+PORTVERSION=	2.5.9
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
diff --git a/devel/rubygem-nio4r/distinfo b/devel/rubygem-nio4r/distinfo
index b9c0bcdfa0d7..767cb0082228 100644
--- a/devel/rubygem-nio4r/distinfo
+++ b/devel/rubygem-nio4r/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1628439626
-SHA256 (rubygem/nio4r-2.5.8.gem) = 3becb4ad95ab8ac0a9bd2e1b16466869402be62848082bf6329ae9091f276676
-SIZE (rubygem/nio4r-2.5.8.gem) = 121856
+TIMESTAMP = 1680726392
+SHA256 (rubygem/nio4r-2.5.9.gem) = 0e9d160662fd38d5a26cfe75308f32dfebe4c0523bceaa86873838c93f3a2971
+SIZE (rubygem/nio4r-2.5.9.gem) = 122368