diff --git a/src/DTO/CostResponseData.php b/src/DTO/CostResponseData.php
index 1088722..818b500 100644
--- a/src/DTO/CostResponseData.php
+++ b/src/DTO/CostResponseData.php
@@ -50,9 +50,9 @@ class CostResponseData extends DataTransferObject
     /**
      * Total cost of the request
      *
-     * @var int
+     * @var float
      */
-    public int $total_cost;
+    public float $total_cost;
 
     /**
      * Origin of the request
@@ -179,4 +179,4 @@ class CostResponseData extends DataTransferObject
      * @var int|null
      */
     public ?int $usage;
-}
\ No newline at end of file
+}