diff --git a/science_article_wos/science_article_wos/spiders/download_by_search_record.py b/science_article_wos/science_article_wos/spiders/download_by_search_record.py
index 7c5536f..ac915f8 100644
--- a/science_article_wos/science_article_wos/spiders/download_by_search_record.py
+++ b/science_article_wos/science_article_wos/spiders/download_by_search_record.py
@@ -5,7 +5,7 @@ from scrapy import signals
 from scrapy.http import Response
 from scrapy.http.request.json_request import JsonRequest
 
-from .database import DatabaseSpider
+# from .database import DatabaseSpider
 from science_article_wos.items import WosArticleItem, WosCitedNumberItem, WosIdRelationItem
 from science_article_wos.scripts.wos_parse_data import parse_full_records
 from science_article_wos.utils import model
@@ -19,7 +19,7 @@ def maybe_list(val: Union[int, List[int]]) -> List[int]:
     return list(val)
 
 
-class DownloadBySearchRecordSpider(DatabaseSpider):
+class DownloadBySearchRecordSpider(scrapy.Spider):
     name = "download_by_search_record"
     custom_settings = dict(
         DOWNLOADER_MIDDLEWARES={