@@ -22,10 +22,11 @@ from .ExitCodes import EX_OSFILE

 try:

     import dateutil.parser

+    import dateutil.tz

 except ImportError:

     sys.stderr.write(u"""

 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

-ImportError trying to import dateutil.parser.

+ImportError trying to import dateutil.parser and dateutil.tz.

 Please install the python dateutil module:

 $ sudo apt-get install python-dateutil

   or

@@ -328,7 +329,7 @@ class Config(object):

     def role_refresh(self):

         if self._access_token_refresh:

-            now = datetime.datetime.now(datetime.timezone.utc)

+            now = datetime.datetime.now(dateutil.tz.tzutc())

             if self._access_token_expiration \

                and now < self._access_token_expiration \

                and self._access_token_last_update \