diff --git a/api/core/workflow/graph_engine/entities/graph.py b/api/core/workflow/graph_engine/entities/graph.py
index 714eb55fd2..853eee7126 100644
--- a/api/core/workflow/graph_engine/entities/graph.py
+++ b/api/core/workflow/graph_engine/entities/graph.py
@@ -1,7 +1,6 @@
 import uuid
 from collections.abc import Mapping
 from typing import Any, Optional, cast
-from cycler import V
 
 from pydantic import BaseModel, Field