diff --git a/parsedmarc/mail/graph.py b/parsedmarc/mail/graph.py
index 473ce8a6..6bb1e66e 100644
--- a/parsedmarc/mail/graph.py
+++ b/parsedmarc/mail/graph.py
@@ -5,7 +5,13 @@
 from functools import lru_cache
 from pathlib import Path
 from time import sleep
-from typing import Any, TypeAlias
+import sys
+from typing import Any
+
+if sys.version_info < (3, 10):
+    from typing_extensions import TypeAlias
+else:
+    from typing import TypeAlias
 
 # Installed
 from azure.identity import (
diff --git a/pyproject.toml b/pyproject.toml
index 4f678157..79b4dafe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,6 +61,7 @@ dependencies = [
     "publicsuffixlist>=0.10.0",
     "requests>=2.22.0",
     "tqdm>=4.31.1",
+    "typing-extensions;python_version<'3.10'",
     "urllib3>=1.25.7",
     "xmltodict>=0.12.0",
 ]