@@ -40,7 +40,7 @@ class MessageSerializer(serializers.ModelSerializer):
 
     def validate(self, data: Dict[str, Any]) -> Dict[str, Any]:
         file = data.get('file')
-        version = data.get('info').get('version')
+        version = data.get('info', {}).get('version', 'default')
         max_mb_size = settings.MAX_UPLOAD_SIZE_PER_MODEL.get(
             version,
             settings.MAX_UPLOAD_SIZE_PER_MODEL['default']