diff --git a/langgraph/graph/graph.py b/langgraph/graph/graph.py
index afbe9e1fd..56e1afa33 100644
--- a/langgraph/graph/graph.py
+++ b/langgraph/graph/graph.py
@@ -11,8 +11,8 @@ from langchain_core.runnables.base import (
 )
 from langchain_core.runnables.config import RunnableConfig
 from langchain_core.runnables.graph import Graph as RunnableGraph
-from langgraph.channels.ephemeral_value import EphemeralValue
 
+from langgraph.channels.ephemeral_value import EphemeralValue
 from langgraph.checkpoint import BaseCheckpointSaver
 from langgraph.pregel import Channel, Pregel, StateSnapshot