diff --git a/mp_api/client/core/client.py b/mp_api/client/core/client.py
index ba6f0ad9..94183081 100644
--- a/mp_api/client/core/client.py
+++ b/mp_api/client/core/client.py
@@ -2,6 +2,7 @@
 API v3 to enable the creation of data structures and pymatgen objects using
 Materials Project data.
 """
+
 from __future__ import annotations
 
 import itertools
@@ -21,6 +22,7 @@
 from urllib.parse import quote, urljoin
 
 import requests
+from bson import json_util
 from emmet.core.utils import jsanitize
 from monty.json import MontyDecoder
 from pydantic import BaseModel, create_model
@@ -494,7 +496,7 @@ def _query_resource(
                 )
                 suffix = suffix.replace("_", "-")
 
-                # Paginate over all entried in the bucket.
+                # Paginate over all entries in the bucket.
                 # This will have to change for when a subset of entries from
                 # the DB is needed.
                 is_tasks = "tasks" in suffix
@@ -516,7 +518,9 @@ def _query_resource(
                         if key:
                             keys.append(key)
 
-                decoder = MontyDecoder().decode if self.monty_decode else json.loads
+                decoder = (
+                    MontyDecoder().decode if self.monty_decode else json_util.loads
+                )
 
                 # Multithreaded function inputs
                 s3_params_list = {
diff --git a/mp_api/client/mprester.py b/mp_api/client/mprester.py
index 53324145..3ccf7645 100644
--- a/mp_api/client/mprester.py
+++ b/mp_api/client/mprester.py
@@ -1378,7 +1378,9 @@ def get_charge_density_from_material_id(
             if self.use_document_model
             else x["last_updated"],  # type: ignore
         )
-        task_id = latest_doc.task_id if self.use_document_model else latest_doc["task_id"]
+        task_id = (
+            latest_doc.task_id if self.use_document_model else latest_doc["task_id"]
+        )
         return self.get_charge_density_from_task_id(task_id, inc_task_doc)
 
     def get_download_info(self, material_ids, calc_types=None, file_patterns=None):