diff --git a/server.py b/server.py
index 37bb823..c516eae 100644
--- a/server.py
+++ b/server.py
@@ -57,6 +57,9 @@ def sign(uri, data, a1, web_session):
             time.sleep(1)
             
         if a1 != global_a1:
+          # 清理浏览器 cookie
+          browser_context.clear_cookies()
+          time.sleep(5)
           browser_context.add_cookies([
               {'name': 'a1', 'value': a1, 'domain': ".xiaohongshu.com", 'path': "/"}
           ])