diff --git a/packages/vite/src/node/ssr/ssrTransform.ts b/packages/vite/src/node/ssr/ssrTransform.ts
index 440d43eea47455..52bdd48b4d13ce 100644
--- a/packages/vite/src/node/ssr/ssrTransform.ts
+++ b/packages/vite/src/node/ssr/ssrTransform.ts
@@ -33,7 +33,7 @@ export async function ssrTransform(
 
   const ast = parser.parse(code, {
     sourceType: 'module',
-    ecmaVersion: 2020,
+    ecmaVersion: 2021,
     locations: true
   }) as any