diff --git a/src/HasParent.php b/src/HasParent.php
index 10051d4..4ec4496 100644
--- a/src/HasParent.php
+++ b/src/HasParent.php
@@ -41,8 +41,11 @@ public static function bootHasParent(): void
             }
         });
 
-        $parentObservedBy = (new static)->getParentClass()::resolveObserveAttributes();
-        static::observe($parentObservedBy);
+        
+        if (method_exists(static::class, 'resolveObserveAttributes')) {
+            $parentObservedBy = (new static)->getParentClass()::resolveObserveAttributes();
+            static::observe($parentObservedBy);
+        }
     }
 
     public function parentHasHasChildrenTrait(): bool