diff --git a/index.js b/index.js
index 327280d..f7b9a3d 100644
--- a/index.js
+++ b/index.js
@@ -240,7 +240,7 @@ export class ${name}ViewModel extends ViewModel
      * @method
      * @public
      */
-    unbind (view: View)
+    unbind (view: View): void
     {
         console.log(view);
     }
diff --git a/package.json b/package.json
index c212e6f..a3bc1ec 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@next2d/view-generator",
-  "version": "1.5.2",
+  "version": "1.5.3",
   "description": "Generate the View class required for routing.",
   "author": "Toshiyuki Ienaga<ienaga@tvon.jp>",
   "license": "MIT",