diff --git a/go.mod b/go.mod
index e007d5e..8275bc6 100644
--- a/go.mod
+++ b/go.mod
@@ -6,5 +6,7 @@ require (
 	github.com/gdamore/tcell v1.4.0
 	github.com/kylelemons/godebug v1.1.0
 	github.com/mattn/go-runewidth v0.0.9
-	github.com/nsf/termbox-go v0.0.0-20200204031403-4d2b513ad8be
+	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 1a5c516..c89a5c5 100644
--- a/go.sum
+++ b/go.sum
@@ -18,7 +18,14 @@ github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/Qd
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/nsf/termbox-go v0.0.0-20200204031403-4d2b513ad8be h1:yzmWtPyxEUIKdZg4RcPq64MfS8NA6A5fNOJgYhpR9EQ=
 github.com/nsf/termbox-go v0.0.0-20200204031403-4d2b513ad8be/go.mod h1:IuKpRQcYE1Tfu+oAQqaLisqDeXgjyyltCfsaoYN18NQ=
+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=
 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=
+golang.org/x/sys v0.0.0-20201113233024-12cec1faf1ba/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.4 h1:0YWbFKbhXG/wIiuHDSKpS0Iy7FSA+u45VtBMfQcFTTc=
+golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=