diff --git a/src/langchain_google_datastore/document_converter.py b/src/langchain_google_datastore/document_converter.py
index 3c8fc75..802cb5d 100644
--- a/src/langchain_google_datastore/document_converter.py
+++ b/src/langchain_google_datastore/document_converter.py
@@ -16,7 +16,6 @@
 
 import itertools
 import json
-from enum import StrEnum
 from typing import TYPE_CHECKING, Any, Dict, List
 
 import more_itertools