diff --git a/libs/langgraph/langgraph/func/__init__.py b/libs/langgraph/langgraph/func/__init__.py
index d608f41f7..2dda24754 100644
--- a/libs/langgraph/langgraph/func/__init__.py
+++ b/libs/langgraph/langgraph/func/__init__.py
@@ -8,12 +8,13 @@ from typing import (
     Awaitable,
     Callable,
     Optional,
-    ParamSpec,
     TypeVar,
     Union,
     overload,
 )
 
+from typing_extensions import ParamSpec
+
 from langgraph.channels.ephemeral_value import EphemeralValue
 from langgraph.channels.last_value import LastValue
 from langgraph.checkpoint.base import BaseCheckpointSaver