diff --git a/go.mod b/go.mod
index 8c49e0b..69e4832 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,6 @@ module github.com/mroth/randomart
 
 go 1.24
 
-require github.com/mattn/go-runewidth v0.0.27
+require github.com/mattn/go-runewidth v0.0.28
 
 require github.com/clipperhouse/uax29/v2 v2.2.0 // indirect
diff --git a/go.sum b/go.sum
index 495e366..c70986e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 github.com/clipperhouse/uax29/v2 v2.2.0 h1:ChwIKnQN3kcZteTXMgb1wztSgaU+ZemkgWdohwgs8tY=
 github.com/clipperhouse/uax29/v2 v2.2.0/go.mod h1:EFJ2TJMRUaplDxHKj1qAEhCtQPW2tJSwu5BF98AuoVM=
-github.com/mattn/go-runewidth v0.0.27 h1:Feg/Oou5zI/wnpgDF6omIU0OokC9GxLC/WRknhVlIR0=
-github.com/mattn/go-runewidth v0.0.27/go.mod h1:3qAiGCV4Koz/yuveO58qUefmUTRm8r0IGEXZ9jeHp/8=
+github.com/mattn/go-runewidth v0.0.28 h1:rPyg2ybwEKPebvpzVWe1gKBkH8EQFkxO4Y0hjBeLaBU=
+github.com/mattn/go-runewidth v0.0.28/go.mod h1:3qAiGCV4Koz/yuveO58qUefmUTRm8r0IGEXZ9jeHp/8=