diff --git a/python_anticaptcha/tasks.py b/python_anticaptcha/tasks.py
index a48963b..c7e7c5b 100644
--- a/python_anticaptcha/tasks.py
+++ b/python_anticaptcha/tasks.py
@@ -49,8 +49,6 @@ def serialize(self, **result):
         if self.proxyLogin:
             data["proxyLogin"] = self.proxyLogin
             data["proxyPassword"] = self.proxyPassword
-        if self.cookies:
-            data["cookies"] = self.cookies
         return data