diff --git a/vendor/go.etcd.io/etcd/clientv3/retry_interceptor.go b/vendor/go.etcd.io/etcd/clientv3/retry_interceptor.go
index e48a003..080490a 100644
--- a/vendor/go.etcd.io/etcd/clientv3/retry_interceptor.go
+++ b/vendor/go.etcd.io/etcd/clientv3/retry_interceptor.go
@@ -28,6 +28,7 @@
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
 )
 
 // unaryClientInterceptor returns a new retrying unary client interceptor.
@@ -79,7 +80,7 @@
 						zap.String("target", cc.Target()),
 						zap.Error(gterr),
 					)
-					return lastErr // return the original error for simplicity
+					return gterr // lastErr must be invalid auth token
 				}
 				continue
 			}
@@ -109,7 +110,7 @@
 			return streamer(ctx, desc, cc, method, grpcOpts...)
 		}
 		if desc.ClientStreams {
-			return nil, grpc.Errorf(codes.Unimplemented, "clientv3/retry_interceptor: cannot retry on ClientStreams, set Disable()")
+			return nil, status.Errorf(codes.Unimplemented, "clientv3/retry_interceptor: cannot retry on ClientStreams, set Disable()")
 		}
 		newStreamer, err := streamer(ctx, desc, cc, method, grpcOpts...)
 		logger.Warn("retry stream intercept", zap.Error(err))
@@ -296,11 +297,11 @@
 func contextErrToGrpcErr(err error) error {
 	switch err {
 	case context.DeadlineExceeded:
-		return grpc.Errorf(codes.DeadlineExceeded, err.Error())
+		return status.Errorf(codes.DeadlineExceeded, err.Error())
 	case context.Canceled:
-		return grpc.Errorf(codes.Canceled, err.Error())
+		return status.Errorf(codes.Canceled, err.Error())
 	default:
-		return grpc.Errorf(codes.Unknown, err.Error())
+		return status.Errorf(codes.Unknown, err.Error())
 	}
 }
 
@@ -328,13 +329,6 @@
 	}}
 }
 
-// withAuthRetry sets enables authentication retries.
-func withAuthRetry(retryAuth bool) retryOption {
-	return retryOption{applyFunc: func(o *options) {
-		o.retryAuth = retryAuth
-	}}
-}
-
 // withMax sets the maximum number of retries on this call, or this interceptor.
 func withMax(maxRetries uint) retryOption {
 	return retryOption{applyFunc: func(o *options) {