diff --git a/go.mod b/go.mod
index 9a90577..b2fbc5b 100644
--- a/go.mod
+++ b/go.mod
@@ -10,5 +10,5 @@ require (
 	github.com/kr/pty v1.1.3
 	github.com/mattn/go-isatty v0.0.4
 	golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9
-	golang.org/x/sys v0.0.0-20181211161752-7da8ea5c8182
+	golang.org/x/sys v0.0.0-20181213200352-4d1cda033e06
 )
diff --git a/go.sum b/go.sum
index 46ab569..84ad983 100644
--- a/go.sum
+++ b/go.sum
@@ -32,3 +32,5 @@ golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9 h1:mKdxBk7AujPs8kU4m80U72
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/sys v0.0.0-20181211161752-7da8ea5c8182 h1:3jwI9dC+BuoXWS+QtR/HhfGTGTuB6ZzL6II6S1IuVvo=
 golang.org/x/sys v0.0.0-20181211161752-7da8ea5c8182/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181213200352-4d1cda033e06 h1:0oC8rFnE+74kEmuHZ46F6KHsMr5Gx2gUQPuNz28iQZM=
+golang.org/x/sys v0.0.0-20181213200352-4d1cda033e06/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=