diff --git a/src/rezplugins/package_repository/mongo.py b/src/rezplugins/package_repository/mongo.py
index d2f3bddc8..3f10386fe 100644
--- a/src/rezplugins/package_repository/mongo.py
+++ b/src/rezplugins/package_repository/mongo.py
@@ -4,7 +4,6 @@
 
 import os
 import time
-from tempfile import NamedTemporaryFile
 from urllib.parse import quote_plus
 import datetime
 from tempfile import gettempdir
@@ -17,8 +16,6 @@
 from rez.package_repository import PackageRepository
 from rez.package_resources import PackageFamilyResource, VariantResourceHelper,\
     PackageResourceHelper, package_pod_schema, VariantResource
-from rez.package_serialise import dump_package_data
-from rez.serialise import load_from_file, FileFormat
 from rez.utils.resources import cached_property, ResourcePool
 
 from pymongo import MongoClient
@@ -128,13 +125,7 @@ def _load(self):
         res = self._repository.packages.find_one({"name": self.name, "version": self.get("version")})
         if not res:
             return {}
-
-        file = NamedTemporaryFile(prefix=self.name, suffix=".py").name
-
-        with open(file, "w") as stream:
-            dump_package_data(res.get("data"), stream)
-
-        return load_from_file(file, FileFormat.py)
+        return res.get("data")
 
 
 class MongoVariantResource(VariantResourceHelper):
@@ -269,7 +260,7 @@ def _get_variant_document(self, variant_resource: VariantResource, overrides=Non
         post.update(overrides)
         # We need to convert all data to string representation, so it can be added to the DB. Maybe there's a
         # built-in way to do this in Rez?
-        str_data = {k: str(v) for k, v in data.items()}
+        str_data = {k: str(v) for k, v in data.items() if v is not None}
         post["data"] = str_data
         post["timestamp"] = datetime.datetime.utcnow()