diff --git a/lib/query.js b/lib/query.js
index 6b410d61c77..f048b3c5660 100644
--- a/lib/query.js
+++ b/lib/query.js
@@ -1670,15 +1670,6 @@ Query.prototype.setOptions = function(options, overwrite) {
   return this;
 };
 
-/*!
- * ignore
- */
-
-const printOverwriteDeprecationWarning = util.deprecate(
-  function printOverwriteDeprecationWarning() {},
-  'The `overwrite` option for `findOneAndUpdate()` is deprecated. use `findOneAndReplace()` instead.'
-);
-
 /**
  * Sets the [`explain` option](https://www.mongodb.com/docs/manual/reference/method/cursor.explain/),
  * which makes this query return detailed execution stats instead of the actual
@@ -3259,16 +3250,6 @@ Query.prototype.findOneAndUpdate = function(filter, doc, options) {
  */
 
 Query.prototype._findOneAndUpdate = async function _findOneAndUpdate() {
-  // For backwards compability with Mongoose 6 re: #13550
-
-  if (this._mongooseOptions.overwrite != null) {
-    printOverwriteDeprecationWarning();
-  }
-  if (this._mongooseOptions.overwrite) {
-    this.op = 'findOneAndReplace';
-    return this._findOneAndReplace();
-  }
-
   this._castConditions();
 
   _castArrayFilters(this);
diff --git a/test/query.test.js b/test/query.test.js
index 2c357b82fa1..1c4c86440b2 100644
--- a/test/query.test.js
+++ b/test/query.test.js
@@ -4156,16 +4156,6 @@ describe('Query', function() {
       /Query must have `op` before executing/
     );
   });
-  it('converts findOneAndUpdate to findOneAndReplace if overwrite set (gh-13550)', async function() {
-    const testSchema = new Schema({
-      name: { type: String }
-    });
-
-    const Test = db.model('Test', testSchema);
-    const q = Test.findOneAndUpdate({}, { name: 'bar' }, { overwrite: true });
-    await q.exec();
-    assert.equal(q.op, 'findOneAndReplace');
-  });
 
   it('allows deselecting discriminator key (gh-13760) (gh-13679)', async function() {
     const testSchema = new Schema({ name: String, age: Number });
diff --git a/types/inferschematype.d.ts b/types/inferschematype.d.ts
index 98e5fd2ff7a..e4ea5ebe327 100644
--- a/types/inferschematype.d.ts
+++ b/types/inferschematype.d.ts
@@ -32,14 +32,14 @@ declare module 'mongoose' {
     EnforcedDocType :
     {
       [
-        K in keyof (RequiredPaths<DocDefinition, TSchemaOptions['typeKey']> &
-        OptionalPaths<DocDefinition, TSchemaOptions['typeKey']>)
+      K in keyof (RequiredPaths<DocDefinition, TSchemaOptions['typeKey']> &
+      OptionalPaths<DocDefinition, TSchemaOptions['typeKey']>)
       ]: IsPathRequired<DocDefinition[K], TSchemaOptions['typeKey']> extends true ?
         ObtainDocumentPathType<DocDefinition[K], TSchemaOptions['typeKey']> :
         ObtainDocumentPathType<DocDefinition[K], TSchemaOptions['typeKey']> | null;
-   };
+    };
 
-   /**
+  /**
    * @summary Obtains document schema type from Schema instance.
    * @param {Schema} TSchema `typeof` a schema instance.
    * @example
@@ -48,7 +48,7 @@ declare module 'mongoose' {
    * // result
    * type UserType = {userName?: string}
    */
-   export type InferSchemaType<TSchema> = IfAny<TSchema, any, ObtainSchemaGeneric<TSchema, 'DocType'>>;
+  export type InferSchemaType<TSchema> = IfAny<TSchema, any, ObtainSchemaGeneric<TSchema, 'DocType'>>;
 
   /**
    * @summary Obtains schema Generic type by using generic alias.