diff --git a/packages/markitdown/src/markitdown/_markitdown.py b/packages/markitdown/src/markitdown/_markitdown.py
index 93f0b3d..538fc1b 100644
--- a/packages/markitdown/src/markitdown/_markitdown.py
+++ b/packages/markitdown/src/markitdown/_markitdown.py
@@ -6,7 +6,7 @@ import tempfile
 import warnings
 import traceback
 from importlib.metadata import entry_points
-from typing import Any, List, Optional, Union
+from typing import Any, List, Optional, Union, Literal
 from pathlib import Path
 from urllib.parse import urlparse
 from warnings import warn