diff --git a/vendor.conf b/vendor.conf
index b9b9b1ddae..ad44af80e2 100755
--- a/vendor.conf
+++ b/vendor.conf
@@ -84,7 +84,7 @@ github.com/xeipuuv/gojsonschema 93e72a773fade158921402d6a24c819b48aba29d
 golang.org/x/crypto 0709b304e793a5edb4a2c0145f281ecdc20838a4
 golang.org/x/net a680a1efc54dd51c040b3b5ce4939ea3cf2ea0d1
 golang.org/x/oauth2 ef147856a6ddbb60760db74283d2424e98c87bff
-golang.org/x/sync 1d60e4601c6fd243af51cc01ddf169918a5407ca
+golang.org/x/sync 42b317875d0fa942474b76e1b46a6060d720ae6e
 golang.org/x/sys d455e41777fca6e8a5a79e34a14b8368bc11d9ba
 golang.org/x/text f21a4dfb5e38f5895301dc265a8def02365cc3d0 # v0.3.0
 golang.org/x/time fbb02b2291d28baffd63558aa44b4b56f178d650
diff --git a/vendor/golang.org/x/sync/errgroup/errgroup.go b/vendor/golang.org/x/sync/errgroup/errgroup.go
index 533438d91c..9857fe53d3 100644
--- a/vendor/golang.org/x/sync/errgroup/errgroup.go
+++ b/vendor/golang.org/x/sync/errgroup/errgroup.go
@@ -7,9 +7,8 @@
 package errgroup
 
 import (
+	"context"
 	"sync"
-
-	"golang.org/x/net/context"
 )
 
 // A Group is a collection of goroutines working on subtasks that are part of
diff --git a/vendor/golang.org/x/sync/semaphore/semaphore.go b/vendor/golang.org/x/sync/semaphore/semaphore.go
index e9d2d79a97..2096ca3a00 100644
--- a/vendor/golang.org/x/sync/semaphore/semaphore.go
+++ b/vendor/golang.org/x/sync/semaphore/semaphore.go
@@ -7,12 +7,8 @@ package semaphore // import "golang.org/x/sync/semaphore"
 
 import (
 	"container/list"
+	"context"
 	"sync"
-
-	// Use the old context because packages that depend on this one
-	// (e.g. cloud.google.com/go/...) must run on Go 1.6.
-	// TODO(jba): update to "context" when possible.
-	"golang.org/x/net/context"
 )
 
 type waiter struct {