diff --git a/types/mongoose/index.d.ts b/types/mongoose/index.d.ts
index 70771c4398..a8c089c25a 100644
--- a/types/mongoose/index.d.ts
+++ b/types/mongoose/index.d.ts
@@ -2550,7 +2550,7 @@ declare module "mongoose" {
      * @param options.validateBeforeSave set to false to save without validating.
      * @param fn optional callback
      */
-    save(fn?: (err: any, product: this, numAffected: number) => void): Promise<this>;
+    save(options?: SaveOptions, fn?: (err: any, product: this, numAffected: number) => void): Promise<this>;
 
     /**
      * Version using default version key. See http://mongoosejs.com/docs/guide.html#versionKey
@@ -2559,6 +2559,21 @@ declare module "mongoose" {
     __v?: number;
   }
 
+  interface SaveOptions {
+    safe?: boolean | WriteConcern;
+    validateBeforeSave?: boolean;
+  }
+
+  interface WriteConcern {
+    j?: boolean;
+    w?: number | 'majority' | TagSet;
+    wtimeout?: number;
+  }
+
+  interface TagSet {
+    [k: string]: string;
+  }
+
   interface ModelProperties {
     /** Base Mongoose instance the model uses. */
     base: typeof mongoose;
diff --git a/types/mongoose/mongoose-tests.ts b/types/mongoose/mongoose-tests.ts
index dc170dccd9..0e8ade55ed 100644
--- a/types/mongoose/mongoose-tests.ts
+++ b/types/mongoose/mongoose-tests.ts
@@ -1050,7 +1050,7 @@ aggregate.unwind(
     includeArrayIndex: "idx",
     preserveNullAndEmptyArrays: true
   });
-  
+
 /*
  * section schematype.js
  * http://mongoosejs.com/docs/api.html#schematype-js
@@ -1215,6 +1215,10 @@ MongoModel.find({}).$where('indexOf("val") !== -1').exec(function (err, docs) {
 MongoModel.findById(999, function (err, doc) {
   doc.increment();
   doc.save(cb).then(cb).catch(cb);
+  doc.save({ validateBeforeSave: false }, cb).then(cb).catch(cb);
+  doc.save({ safe: true }, cb).then(cb).catch(cb);
+  doc.save({ safe: { w: 2, j: true } }, cb).then(cb).catch(cb);
+  doc.save({ safe: { w: 'majority', wtimeout: 10000 } }, cb).then(cb).catch(cb);
 });
 MongoModel = (new MongoModel()).model('MongoModel');
 var mongoModel = new MongoModel();