diff --git a/py/selenium/webdriver/chromium/options.py b/py/selenium/webdriver/chromium/options.py
index 12c7be135d99e..3edf2655462aa 100644
--- a/py/selenium/webdriver/chromium/options.py
+++ b/py/selenium/webdriver/chromium/options.py
@@ -121,7 +121,7 @@ def experimental_options(self) -> dict:
         """
         return self._experimental_options
 
-    def add_experimental_option(self, name: str, value: Union[str, int, dict]):
+    def add_experimental_option(self, name: str, value: Union[str, int, dict, List[str]]):
         """
         Adds an experimental option which is passed to chromium.