diff --git a/types/mongoose/index.d.ts b/types/mongoose/index.d.ts
index bb1a64be4f..1e056afd1c 100644
--- a/types/mongoose/index.d.ts
+++ b/types/mongoose/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Mongoose 5.5
+// Type definitions for Mongoose 5.5.1
 // Project: http://mongoosejs.com/
 // Definitions by: horiuchi <https://github.com/horiuchi>
 //                 lukasz-zak <https://github.com/lukasz-zak>
@@ -1968,6 +1968,9 @@ declare module "mongoose" {
     /** Specifies the maxScan option. Cannot be used with distinct() */
     maxScan(val: number): this;
 
+    /** Specifies the maxTimeMS options. */
+    maxTimeMS(val: number): this;
+
     /**
      * Merges another Query or conditions object into this one.
      * When a Query is passed, conditions, field selection and options are merged.
diff --git a/types/mongoose/mongoose-tests.ts b/types/mongoose/mongoose-tests.ts
index 799ec3cfc9..55faba9f88 100644
--- a/types/mongoose/mongoose-tests.ts
+++ b/types/mongoose/mongoose-tests.ts
@@ -1083,6 +1083,7 @@ query.find().lt('age', 21);
 query.find().where('age').lte(21);
 query.find().lte('age', 21);
 query.maxDistance('path', 21).maxDistance(21);
+query.maxTimeMS(1000);
 query.maxscan(100).maxScan(100);
 query.maxScan(100).maxScan(100);
 query.merge(query).merge({});