.

src/main/java/com/izouma/nineth/service/CollectionService.java

@@ -329,7 +329,7 @@ public class CollectionService {
         }
         winItem.setStock(winItem.getStock() - 1);
         winItem.setSale(winItem.getSale() + 1);
-        blindBoxItemRepo.saveAndFlush(winItem);
+        blindBoxItemRepo.save(winItem);
         return winItem;
     }