diff --git a/vendor/github.com/mongodb/mongo-go-driver/mongo/options/estimatedcountoptions.go b/vendor/github.com/mongodb/mongo-go-driver/mongo/options/estimatedcountoptions.go
new file mode 100644
index 0000000..f43bb9f
--- /dev/null
+++ b/vendor/github.com/mongodb/mongo-go-driver/mongo/options/estimatedcountoptions.go
@@ -0,0 +1,42 @@
+// Copyright (C) MongoDB, Inc. 2017-present.
+//
+// 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
+
+package options
+
+import "time"
+
+// EstimatedDocumentCountOptions represents all possible options to the estimatedDocumentCount() function
+type EstimatedDocumentCountOptions struct {
+	MaxTime *time.Duration // The maximum amount of time to allow the operation to run
+}
+
+// EstimatedDocumentCount returns a pointer to a new EstimatedDocumentCountOptions
+func EstimatedDocumentCount() *EstimatedDocumentCountOptions {
+	return &EstimatedDocumentCountOptions{}
+}
+
+// SetMaxTime specifies the maximum amount of time to allow the operation to run
+func (eco *EstimatedDocumentCountOptions) SetMaxTime(d time.Duration) *EstimatedDocumentCountOptions {
+	eco.MaxTime = &d
+	return eco
+}
+
+// MergeEstimatedDocumentCountOptions combines the given *EstimatedDocumentCountOptions into a single
+// *EstimatedDocumentCountOptions in a last one wins fashion.
+func MergeEstimatedDocumentCountOptions(opts ...*EstimatedDocumentCountOptions) *EstimatedDocumentCountOptions {
+	e := EstimatedDocumentCount()
+	for _, opt := range opts {
+		if opt == nil {
+			continue
+		}
+
+		if opt.MaxTime != nil {
+			e.MaxTime = opt.MaxTime
+		}
+	}
+
+	return e
+}