diff --git a/DrissionPage/__init__.py b/DrissionPage/__init__.py
index 09f8ea7..39c0eb0 100644
--- a/DrissionPage/__init__.py
+++ b/DrissionPage/__init__.py
@@ -14,4 +14,4 @@ from ._pages.chromium_page import ChromiumPage
 from ._pages.mix_page import MixPage
 from ._pages.mix_page import MixPage as WebPage
 
-__version__ = '4.1.0.0b18'
+__version__ = '4.1.0.0b19'
diff --git a/DrissionPage/_units/setter.py b/DrissionPage/_units/setter.py
index 1c46abd..aa0927c 100644
--- a/DrissionPage/_units/setter.py
+++ b/DrissionPage/_units/setter.py
@@ -348,7 +348,7 @@ class ChromiumBaseSetter(BrowserBaseSetter):
             files = (files,)
         self._owner._upload_list = [str(Path(i).absolute()) for i in files]
 
-    def headers(self, headers) -> None:
+    def headers(self, headers):
         """设置固定发送的headers
         :param headers: dict格式的headers数据，或从浏览器复制的headers文本（\n分行）
         :return: None
@@ -494,7 +494,7 @@ class MixPageSetter(ChromiumPageSetter):
             self._cookies_setter = MixPageCookiesSetter(self._owner)
         return self._cookies_setter
 
-    def headers(self, headers) -> None:
+    def headers(self, headers):
         """设置固定发送的headers
         :param headers: dict格式的headers数据
         :return: None
@@ -525,7 +525,7 @@ class MixTabSetter(TabSetter):
             self._cookies_setter = MixPageCookiesSetter(self._owner)
         return self._cookies_setter
 
-    def headers(self, headers) -> None:
+    def headers(self, headers):
         """设置固定发送的headers
         :param headers: dict格式的headers数据
         :return: None