diff --git a/src/Rules/Date.php b/src/Rules/Date.php
index 37c5b03..20b8f01 100644
--- a/src/Rules/Date.php
+++ b/src/Rules/Date.php
@@ -29,6 +29,6 @@ public function check($value): bool
         $this->requireParameters($this->fillableParams);
 
         $format = $this->parameter('format');
-        return date_create_from_format($format, $value) !== false;
+        return date_create_from_format($format, $value ?? '') !== false;
     }
 }