diff --git a/go.mod b/go.mod
index fcb7ca7..b9a9a36 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.25.1
 
 require (
 	github.com/flashcatcloud/go-flashduty v0.7.0
-	github.com/mattn/go-runewidth v0.0.24
+	github.com/mattn/go-runewidth v0.0.27
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	github.com/toon-format/toon-go v0.0.0-20251202084852-7ca0e27c4e8c
diff --git a/go.sum b/go.sum
index d7a7ada..1778729 100644
--- a/go.sum
+++ b/go.sum
@@ -5,8 +5,8 @@ github.com/flashcatcloud/go-flashduty v0.7.0 h1:SgNM4mnf4SKoYupVtEdRxN66Oqm/rQLB
 github.com/flashcatcloud/go-flashduty v0.7.0/go.mod h1:aA0RtZEs0AYOwwdNKdtVeD8YMOdnmVY1zAlVD+9Ovx8=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
-github.com/mattn/go-runewidth v0.0.24 h1:cpokDiIn0MGnhdHwuWnJBITySJ20QyNGnY2kR/ay2DU=
-github.com/mattn/go-runewidth v0.0.24/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs=
+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/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
 github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=