diff --git a/pyzipline/zipline.py b/pyzipline/zipline.py
index 02c881f..2426e91 100644
--- a/pyzipline/zipline.py
+++ b/pyzipline/zipline.py
@@ -12,10 +12,10 @@ class ZiplineApi:
 
     Args:
         hostname (str): The hostname of your Zipline instance, WITHOUT https or http.
-        token (str = None): String used for authentication when making requests.
-        ssl (bool = True): Normally set to True, but if your Zipline instance doesn't use SSL/TLS, set this to False.
-        enforced_signing (bool = True): Normally set to True, but if having SSL/TLS cert validation issues, can turn off with False.
-        logger (logging.Logger = None): If your app has a logger, pass it in here.
+        token (str): String used for authentication when making requests.
+        ssl (bool): Normally set to True, but if your Zipline instance doesn't use SSL/TLS, set this to False.
+        enforced_signing (bool): Normally set to True, but if having SSL/TLS cert validation issues, can turn off with False.
+        logger (logging.Logger): If your app has a logger, pass it in here.
     """
     def __init__(
         self,