diff --git a/libs/langgraph/tests/test_pregel.py b/libs/langgraph/tests/test_pregel.py
index 34b4615be..fcee1fa20 100644
--- a/libs/langgraph/tests/test_pregel.py
+++ b/libs/langgraph/tests/test_pregel.py
@@ -13935,7 +13935,7 @@ def test_store_injected(
     thread_2 = str(uuid.uuid4())
 
     class Node:
-        def __init__(self, i: int | None = None):
+        def __init__(self, i: Optional[int] = None):
             self.i = i
 
         def __call__(self, inputs: State, config: RunnableConfig, store: BaseStore):
diff --git a/libs/langgraph/tests/test_pregel_async.py b/libs/langgraph/tests/test_pregel_async.py
index 0018c22b2..c5812e896 100644
--- a/libs/langgraph/tests/test_pregel_async.py
+++ b/libs/langgraph/tests/test_pregel_async.py
@@ -12281,7 +12281,7 @@ async def test_store_injected_async(checkpointer_name: str, store_name: str) ->
     thread_2 = str(uuid.uuid4())
 
     class Node:
-        def __init__(self, i: int | None = None):
+        def __init__(self, i: Optional[int] = None):
             self.i = i
 
         async def __call__(