diff --git a/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/error.go b/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/error.go
index 55eab38..9e45cea 100644
--- a/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/error.go
+++ b/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/error.go
@@ -61,6 +61,7 @@
 
 	ErrGRPCNoLeader                   = status.New(codes.Unavailable, "etcdserver: no leader").Err()
 	ErrGRPCNotLeader                  = status.New(codes.FailedPrecondition, "etcdserver: not leader").Err()
+	ErrGRPCLeaderChanged              = status.New(codes.Unavailable, "etcdserver: leader changed").Err()
 	ErrGRPCNotCapable                 = status.New(codes.Unavailable, "etcdserver: not capable").Err()
 	ErrGRPCStopped                    = status.New(codes.Unavailable, "etcdserver: server stopped").Err()
 	ErrGRPCTimeout                    = status.New(codes.Unavailable, "etcdserver: request timed out").Err()
@@ -111,6 +112,7 @@
 
 		ErrorDesc(ErrGRPCNoLeader):                   ErrGRPCNoLeader,
 		ErrorDesc(ErrGRPCNotLeader):                  ErrGRPCNotLeader,
+		ErrorDesc(ErrGRPCLeaderChanged):              ErrGRPCLeaderChanged,
 		ErrorDesc(ErrGRPCNotCapable):                 ErrGRPCNotCapable,
 		ErrorDesc(ErrGRPCStopped):                    ErrGRPCStopped,
 		ErrorDesc(ErrGRPCTimeout):                    ErrGRPCTimeout,
@@ -163,6 +165,7 @@
 
 	ErrNoLeader                   = Error(ErrGRPCNoLeader)
 	ErrNotLeader                  = Error(ErrGRPCNotLeader)
+	ErrLeaderChanged              = Error(ErrGRPCLeaderChanged)
 	ErrNotCapable                 = Error(ErrGRPCNotCapable)
 	ErrStopped                    = Error(ErrGRPCStopped)
 	ErrTimeout                    = Error(ErrGRPCTimeout)
diff --git a/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/metadatafields.go b/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/metadatafields.go
new file mode 100644
index 0000000..8f8ac60
--- /dev/null
+++ b/vendor/go.etcd.io/etcd/etcdserver/api/v3rpc/rpctypes/metadatafields.go
@@ -0,0 +1,20 @@
+// Copyright 2018 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package rpctypes
+
+var (
+	TokenFieldNameGRPC    = "token"
+	TokenFieldNameSwagger = "authorization"
+)