diff --git a/README.md b/README.md
index 290cea3..bd8a4ea 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ Step 2
 
 : Vercel へのデプロイ
 
-[![Deploy with Vercel](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Fkou029w%2Fdaraz-gpt&env=SLACK_BOT_TOKEN,SLACK_SIGNING_SECRET,OPENAI_API_KEY)
+[![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2Fkou029w%2Fdaraz-gpt&env=SLACK_BOT_TOKEN,SLACK_SIGNING_SECRET,OPENAI_API_KEY)
 
 - `SLACK_BOT_TOKEN` ... [Slack Applications](https://api.slack.com/apps) → "daraz-gpt" → Permissions ページにある `xoxb-` から始まるボットトークン
 - `SLACK_SIGNING_SECRET` ... [Slack Applications](https://api.slack.com/apps) → "daraz-gpt" → Basic Information ページにある Signing Secret