diff --git a/src/OrderLoader.php b/src/OrderLoader.php
index 56319d6..9a5a873 100644
--- a/src/OrderLoader.php
+++ b/src/OrderLoader.php
@@ -8,7 +8,7 @@
 interface OrderLoader
 {
 	/**
-	 * @return array<int, array{id: int, number: string, price: float, date: \DateTime}>
+	 * @return array<int, array{id: int, number: string, price: string, date: \DateTimeImmutable}>
 	 */
 	public function getOrders(int $customerId): array;
 }