diff --git a/xlwt/Worksheet.py b/xlwt/Worksheet.py
index a0e4cbb..80d045d 100644
--- a/xlwt/Worksheet.py
+++ b/xlwt/Worksheet.py
@@ -34,8 +34,6 @@
 
 import tempfile
 
-import six
-
 from . import BIFFRecords, Bitmap, Style
 from .Column import Column
 from .Row import Row