diff --git a/go.mod b/go.mod
index d387d99..d902425 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.14
 require (
 	github.com/gdamore/tcell/v2 v2.1.0
 	github.com/kylelemons/godebug v1.1.0
-	github.com/mattn/go-runewidth v0.0.9
+	github.com/mattn/go-runewidth v0.0.10
 	github.com/nsf/termbox-go v0.0.0-20201107200903-9b52a5faed9e
 	golang.org/x/sys v0.0.0-20201113233024-12cec1faf1ba // indirect
 	golang.org/x/text v0.3.4 // indirect
diff --git a/go.sum b/go.sum
index d39aed7..edb9193 100644
--- a/go.sum
+++ b/go.sum
@@ -7,10 +7,12 @@ github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+
 github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
 github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
-github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
+github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/nsf/termbox-go v0.0.0-20201107200903-9b52a5faed9e h1:T8/SzSWIDoWV9trslLNfUdJ5yHrIXXuODEy5M0vou4U=
 github.com/nsf/termbox-go v0.0.0-20201107200903-9b52a5faed9e/go.mod h1:IuKpRQcYE1Tfu+oAQqaLisqDeXgjyyltCfsaoYN18NQ=
+github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756 h1:9nuHUbU8dRnRRfj9KjWUVrJeoexdbeMjttk6Oh1rD10=
 golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201113233024-12cec1faf1ba h1:xmhUJGQGbxlod18iJGqVEp9cHIPLl7QiX2aA3to708s=