diff --git a/googlevoice/voice.py b/googlevoice/voice.py
index 78802a2..7f3c158 100644
--- a/googlevoice/voice.py
+++ b/googlevoice/voice.py
@@ -311,7 +311,11 @@ def __validate_special_page(self, page, data: Mapping = {}, **kwargs):
         """
         Validates a given special page for an 'ok' response
         """
-        util.load_and_validate(self.__do_special_page(page, dict(data) | kwargs))
+        # Python 3.8 compatibility
+        # data = dict(data) | kwargs
+        data = dict(data)
+        data.update(kwargs)
+        util.load_and_validate(self.__do_special_page(page, data))
 
     _Phone__validate_special_page = __validate_special_page