diff --git a/src/app/api/health/route.ts b/src/app/api/health/route.ts
index ee90023..633b201 100644
--- a/src/app/api/health/route.ts
+++ b/src/app/api/health/route.ts
@@ -1,5 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { db } from '@/lib/db';
+import { candles } from '@/lib/db/schema';
 
 export async function GET(request: NextRequest) {
   try {
@@ -14,7 +15,7 @@ export async function GET(request: NextRequest) {
     if (checkDb === 'db') {
       try {
         // Test database connectivity with a simple query
-        await db.execute('SELECT 1');
+        await db.select().from(candles).limit(1);
         response.database = 'ok';
       } catch (dbError: any) {
         return NextResponse.json(