diff --git a/src/google.golang.org/grpc/go.mod b/src/google.golang.org/grpc/go.mod
index 41a890ee..768ee9b8 100644
--- a/src/google.golang.org/grpc/go.mod
+++ b/src/google.golang.org/grpc/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/google/go-cmp v0.2.0
 	golang.org/x/net v0.0.0-20190311183353-d8887717615a
 	golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be
-	golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a
+	golang.org/x/sys v0.1.0
 	google.golang.org/appengine v1.1.0 // indirect
 	google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8
 )
diff --git a/src/google.golang.org/grpc/go.sum b/src/google.golang.org/grpc/go.sum
index be841af3..c12ed8bb 100644
--- a/src/google.golang.org/grpc/go.sum
+++ b/src/google.golang.org/grpc/go.sum
@@ -13,8 +13,9 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a h1:oWX7TPOiFAMXLq8o0ikBYfCJV
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be h1:vEDujvNQGv4jgYKudGeI/+DAX4Jffq6hpD55MmoEvKs=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
+golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 google.golang.org/appengine v1.1.0 h1:igQkv0AAhEIvTEpD5LIpAfav2eeVO9HBTjvKHVJPRSs=