diff --git a/api/core/workflow/nodes/variable_aggregator/variable_aggregator_node.py b/api/core/workflow/nodes/variable_aggregator/variable_aggregator_node.py
index d997bfe649..7b731bcc47 100644
--- a/api/core/workflow/nodes/variable_aggregator/variable_aggregator_node.py
+++ b/api/core/workflow/nodes/variable_aggregator/variable_aggregator_node.py
@@ -1,4 +1,3 @@
-from collections.abc import Mapping
 from typing import Any
 
 from core.workflow.entities.node_entities import NodeRunResult