diff --git a/cognee/api/v1/ontologies/ontologies.py b/cognee/api/v1/ontologies/ontologies.py
index 4bd3f2cd5..9ade625b0 100644
--- a/cognee/api/v1/ontologies/ontologies.py
+++ b/cognee/api/v1/ontologies/ontologies.py
@@ -80,7 +80,7 @@ class OntologyService:
         )
 
     async def upload_ontologies(
-        self, ontology_key: List[str], files: List, user, descriptions: Optional[List[str]] = None
+        self, ontology_key: List[str], files: List[UploadFile], user, descriptions: Optional[List[str]] = None
     ) -> List[OntologyMetadata]:
         """
         Upload ontology files with their respective keys.