diff --git a/src/debugpy/adapter/clients.py b/src/debugpy/adapter/clients.py
index 707a261c..69a3fe77 100644
--- a/src/debugpy/adapter/clients.py
+++ b/src/debugpy/adapter/clients.py
@@ -7,7 +7,7 @@ from __future__ import annotations
 import atexit
 import os
 import sys
-from typing import TYPE_CHECKING, Any, Callable, Literal, Union, cast
+from typing import Any, Callable, Union, cast
 
 import debugpy
 from debugpy import adapter, common, launcher