diff --git a/eopayment/payfip_ws.py b/eopayment/payfip_ws.py
index 65fbaf8..82c4518 100644
--- a/eopayment/payfip_ws.py
+++ b/eopayment/payfip_ws.py
@@ -27,7 +27,6 @@ import xml.etree.ElementTree as ET
 
 import pytz
 import requests
-import six
 import zeep
 import zeep.exceptions
 from six.moves.urllib.parse import parse_qs