diff --git a/src/behavior3 b/src/behavior3
index 5d187cb..752008f 160000
--- a/src/behavior3
+++ b/src/behavior3
@@ -1 +1 @@
-Subproject commit 5d187cb681306cea65e44ca17224f4dc43353482
+Subproject commit 752008fbc3873f41736421be193b29029a13674c
diff --git a/src/misc/template.ts b/src/misc/template.ts
index 536d680..a9951a9 100644
--- a/src/misc/template.ts
+++ b/src/misc/template.ts
@@ -1,12 +1,6 @@
 import { Context, Node, NodeDef } from "@/behavior3/src/behavior3";
 import { DeepReadonly } from "../behavior3/src/behavior3/context";
 
-class NodeContext extends Context {
-  loadTree(path: string): Promise<Node> {
-    throw new Error("Method not implemented.");
-  }
-}
-
 export const zhNodeDef = () => {
   const context = new (class extends Context {
     loadTree(path: string): Promise<Node> {