diff --git a/src/README.md b/src/README.md
index 5bbc7b7..94b24b7 100644
--- a/src/README.md
+++ b/src/README.md
@@ -5,7 +5,7 @@ Jestを使ってどうやってテストするのか？といった疑問に答
 テストを行っていくための最初の一歩になればと思います。
 
 <iframe
-  src="https://stackblitz.com/github/kou029w/jest-hands-on/tree/main/templates/template?embed=1&view=editor&terminal=test&file=sum.js,sum.test.js"
+  src="https://stackblitz.com/github/kou029w/jest-hands-on/tree/main/templates/template?embed=1&view=editor&terminal=watch&file=sum.js,sum.test.js"
   style="
     width: 100%;
     height: 640px;
diff --git a/templates/template/package.json b/templates/template/package.json
index 73552db..bc47cb9 100644
--- a/templates/template/package.json
+++ b/templates/template/package.json
@@ -5,7 +5,8 @@
   "main": "main.js",
   "type": "module",
   "scripts": {
-    "test": "jest"
+    "test": "jest",
+    "watch": "jest --watchAll"
   },
   "devDependencies": {
     "@babel/preset-env": "^7.18.9",