diff --git a/src/CartManager/AbstractCart.php b/src/CartManager/AbstractCart.php
index f3ba0f52..17c3de49 100644
--- a/src/CartManager/AbstractCart.php
+++ b/src/CartManager/AbstractCart.php
@@ -158,7 +158,9 @@ public function updateItem(string $itemKey, CheckoutableInterface $product, int
             $item->setSubItems($subItems);
         }
 
-        $item->setCustomProperties($params);
+        if (method_exists($item, 'setCustomProperties')) {
+            $item->setCustomProperties($params);
+        }
 
         $this->items[$itemKey] = $item;
 
diff --git a/src/CartManager/CartItemInterface.php b/src/CartManager/CartItemInterface.php
index d352ba82..2c1c8a62 100644
--- a/src/CartManager/CartItemInterface.php
+++ b/src/CartManager/CartItemInterface.php
@@ -112,6 +112,4 @@ public function setAddedDateTimestamp(int $time): void;
      * @return string
      */
     public function getName(): string;
-
-    public function setCustomProperties(array $params): void;
 }