From a3a59637f7b7fd2a5239c789a8dcc94e73deb766 Mon Sep 17 00:00:00 2001
From: Elijah Frederickson <elijah.frederickson@gmail.com>
Date: Fri, 21 Oct 2022 17:01:14 -0400
Subject: [PATCH] Fix #512

Apply the fix suggested in #512
---
 flask_mongoengine/json.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flask_mongoengine/json.py b/flask_mongoengine/json.py
index 86c45c9b..636b1510 100644
--- a/flask_mongoengine/json.py
+++ b/flask_mongoengine/json.py
@@ -78,7 +78,7 @@ def default(obj):
                 (BaseDocument, QuerySet, CommandCursor, DBRef, ObjectId),
             ):
                 return _convert_mongo_objects(obj)
-            return super().default(obj)
+            return super(MongoEngineJSONProvider, MongoEngineJSONProvider).default(obj)
 
     return MongoEngineJSONProvider