diff --git a/server.js b/server.js
index 834489cb..4be2d6f0 100644
--- a/server.js
+++ b/server.js
@@ -250,7 +250,7 @@ async function purchaseMiddleware(req, res, next) {
         }
         return res.status(402).json({
             error: '購入が必要です',
-            store_url: 'https://posimai-store.vercel.app/index-c.html'
+            store_url: 'https://store.posimai.soar-enrich.com/index-c.html'
         });
     } catch (e) {
         console.error('[Purchase] DB error:', e.message);