diff --git a/adapter/vercel/src/index.js b/adapter/vercel/src/index.js
index 99199df4e..f455f4d5f 100644
--- a/adapter/vercel/src/index.js
+++ b/adapter/vercel/src/index.js
@@ -19,7 +19,7 @@ export default async (req, res) => {
   env.UPSTASH_REDIS_REST_URL ||= process.env.REDIS_URL;
   env.UPSTASH_REDIS_REST_TOKEN ||= process.env.REDIS_TOKEN;
 
-  env.DATABASE = new Redis.fromEnv();
+  env.DATABASE = Redis.fromEnv();
 
   const body = await req.text();
   const cfReq = new Request(req.url, {