diff --git a/go.mod b/go.mod
index 29f1b95..940ce45 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ require (
 	github.com/gdamore/tcell/v2 v2.5.3
 	github.com/google/go-cmp v0.5.9
 	github.com/google/gofuzz v1.2.0
-	github.com/mattn/go-runewidth v0.0.13
+	github.com/mattn/go-runewidth v0.0.14
 	github.com/nsf/termbox-go v0.0.0-20201124104050-ed494de23a00
 	github.com/pkg/errors v0.9.1
 )
diff --git a/go.sum b/go.sum
index 629f855..1287928 100644
--- a/go.sum
+++ b/go.sum
@@ -9,8 +9,9 @@ github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
-github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
 github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
+github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/nsf/termbox-go v0.0.0-20201124104050-ed494de23a00 h1:Rl8NelBe+n7SuLbJyw13ho7CGWUt2BjGGKIoreCWQ/c=
 github.com/nsf/termbox-go v0.0.0-20201124104050-ed494de23a00/go.mod h1:T0cTdVuOwf7pHQNtfhnEbzHbcNyCEcVU4YPpouCbVxo=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=