diff --git a/src/BloodGroupNode/index.tsx b/src/BloodGroupNode/index.tsx
index c196f69..e6acb70 100644
--- a/src/BloodGroupNode/index.tsx
+++ b/src/BloodGroupNode/index.tsx
@@ -1,6 +1,6 @@
 import { ArtboardTitle, getClsFromSelectType } from '@/BloodNode';
-import { NodeMapItem, NodeSelect, ProFlowNode } from '@/ProFlow/constants';
-import { ProFlowNodeData } from '@/constants';
+import { NodeMapItem, NodeSelect } from '@/ProFlow/constants';
+import { ProFlowNode, ProFlowNodeData } from '@/constants';
 import { cx } from 'antd-style';
 import React from 'react';
 import { useStyles } from './styles';
diff --git a/src/constants.tsx b/src/constants.tsx
index f22d824..ab72426 100644
--- a/src/constants.tsx
+++ b/src/constants.tsx
@@ -25,7 +25,7 @@ export interface ProFlowEdge {
   id: string;
   source: string;
   target: string;
-  select: NodeSelect;
+  select?: NodeSelect;
   type?: EdgeType;
 }