diff --git a/src/EditableDialogBox/EditableItem/NumericItem.php b/src/EditableDialogBox/EditableItem/NumericItem.php
index fb9b32d..4d97308 100644
--- a/src/EditableDialogBox/EditableItem/NumericItem.php
+++ b/src/EditableDialogBox/EditableItem/NumericItem.php
@@ -33,8 +33,8 @@ public function setDefaultValue(int $value): static
     protected function getConfig(): array
     {
         return [
-            'minValue' => $this->min,
-            'maxValue' => $this->max,
+            'minValue' => (string) $this->min,
+            'maxValue' => (string) $this->max,
         ];
     }
 }