diff --git a/config/initializers/chunked_uploader.rb b/config/initializers/chunked_uploader.rb
index 30d041c3..99c01870 100644
--- a/config/initializers/chunked_uploader.rb
+++ b/config/initializers/chunked_uploader.rb
@@ -1,4 +1,6 @@
 # frozen_string_literal: true
 
 # License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
-CHUNKED_UPLOADER = ENV['CHUNKED_UPLOAD_CLASS'] ? ENV['CHUNKED_UPLOAD_CLASS'].constantize : ChunkedUploader::S3
+CHUNKED_UPLOADER_SERVICE = ENV['CHUNKED_UPLOADER_SERVICE'] ? ActiveStorage::Service.configure(
+    ENV['CHUNKED_UPLOADER_SERVICE'], 
+    Rails.configuration.active_storage.service_configurations) : ActiveStorage::Blob.service