diff --git a/.changeset/young-spoons-rescue.md b/.changeset/young-spoons-rescue.md
new file mode 100644
index 000000000000..6fbeded05974
--- /dev/null
+++ b/.changeset/young-spoons-rescue.md
@@ -0,0 +1,5 @@
+---
+'@astrojs/vercel': patch
+---
+
+Allows the edge middleware to be an async function.
diff --git a/packages/integrations/vercel/src/serverless/middleware.ts b/packages/integrations/vercel/src/serverless/middleware.ts
index a2e44722b20d..b3ada80d15bf 100644
--- a/packages/integrations/vercel/src/serverless/middleware.ts
+++ b/packages/integrations/vercel/src/serverless/middleware.ts
@@ -53,7 +53,7 @@ function edgeMiddlewareTemplate(middlewarePath: string, vercelEdgeMiddlewareHand
 	if (existsSync(filePathEdgeMiddleware + '.js') || existsSync(filePathEdgeMiddleware + '.ts')) {
 		const stringified = JSON.stringify(filePathEdgeMiddleware.replace(/\\/g, '/'));
 		handlerTemplateImport = `import handler from ${stringified}`;
-		handlerTemplateCall = `handler({ request, context })`;
+		handlerTemplateCall = `await handler({ request, context })`;
 	} else {
 	}
 	return `