diff --git a/vendor.conf b/vendor.conf
index b64853eabf..02f0fb2cb7 100755
--- a/vendor.conf
+++ b/vendor.conf
@@ -48,7 +48,7 @@ github.com/Microsoft/go-winio                       5b44b70ab3ab4d291a7c1d28afe7
 github.com/Microsoft/hcsshim                        5bc557dd210ff2caf615e6e22d398123de77fc11 # v0.8.9
 github.com/miekg/pkcs11                             210dc1e16747c5ba98a03bcbcf728c38086ea357 # v1.0.3
 github.com/mitchellh/mapstructure                   d16e9488127408e67948eb43b6d3fbb9f222da10 # v1.3.2
-github.com/moby/buildkit                            fcb87e6b8ccf3631a65799cc56caa76f9117816e # v0.8.0-rc2
+github.com/moby/buildkit                            73fe4736135645a342abc7b587bba0994cccf0f9 # v0.8.0
 github.com/moby/sys                                 1bc8673b57550ddf85262eb0fed0aac651a37dab # symlink/v0.1.0 (latest tag, either mount/vXXX, mountinfo/vXXX or symlink/vXXX)
 github.com/moby/term                                bea5bbe245bf407372d477f1361d2ff042d2f556
 github.com/modern-go/concurrent                     bacd9c7ef1dd9b15be4a9909b8ac7a4e313eec94 # 1.0.3
diff --git a/vendor/github.com/moby/buildkit/README.md b/vendor/github.com/moby/buildkit/README.md
index 0af9e2e126..4532dd7cde 100644
--- a/vendor/github.com/moby/buildkit/README.md
+++ b/vendor/github.com/moby/buildkit/README.md
@@ -3,8 +3,9 @@
 # BuildKit
 
 [![GoDoc](https://godoc.org/github.com/moby/buildkit?status.svg)](https://godoc.org/github.com/moby/buildkit/client/llb)
-[![Build Status](https://travis-ci.org/moby/buildkit.svg?branch=master)](https://travis-ci.org/moby/buildkit)
+[![Build Status](https://travis-ci.com/moby/buildkit.svg?branch=master)](https://travis-ci.com/moby/buildkit)
 [![Go Report Card](https://goreportcard.com/badge/github.com/moby/buildkit)](https://goreportcard.com/report/github.com/moby/buildkit)
+[![codecov](https://codecov.io/gh/moby/buildkit/branch/master/graph/badge.svg)](https://codecov.io/gh/moby/buildkit)
 
 BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner.
 
diff --git a/vendor/github.com/moby/buildkit/solver/errdefs/context.go b/vendor/github.com/moby/buildkit/solver/errdefs/context.go
new file mode 100644
index 0000000000..ea6bdfbf09
--- /dev/null
+++ b/vendor/github.com/moby/buildkit/solver/errdefs/context.go
@@ -0,0 +1,13 @@
+package errdefs
+
+import (
+	"context"
+	"errors"
+
+	"github.com/moby/buildkit/util/grpcerrors"
+	"google.golang.org/grpc/codes"
+)
+
+func IsCanceled(err error) bool {
+	return errors.Is(err, context.Canceled) || grpcerrors.Code(err) == codes.Canceled
+}