diff --git a/kirovy/services/legacy_upload/base.py b/kirovy/services/legacy_upload/base.py
index e3597e3..9a9d4f1 100644
--- a/kirovy/services/legacy_upload/base.py
+++ b/kirovy/services/legacy_upload/base.py
@@ -3,7 +3,7 @@
 import pathlib
 import zipfile
 
-from cryptography.utils import cached_property
+from django.utils.functional import cached_property
 from django.core.files.base import ContentFile
 from django.core.files.uploadedfile import UploadedFile
 
diff --git a/kirovy/views/map_upload_views.py b/kirovy/views/map_upload_views.py
index e7cdc0a..b9bc93f 100644
--- a/kirovy/views/map_upload_views.py
+++ b/kirovy/views/map_upload_views.py
@@ -1,7 +1,7 @@
 import io
 from abc import ABCMeta
 
-from cryptography.utils import cached_property
+from django.utils.functional import cached_property
 from django.conf import settings
 from django.core.exceptions import ObjectDoesNotExist
 from django.core.files.base import ContentFile, File