diff --git a/auto_ml/DataFrameVectorizer.py b/auto_ml/DataFrameVectorizer.py
index cf3259b..1dd3c54 100644
--- a/auto_ml/DataFrameVectorizer.py
+++ b/auto_ml/DataFrameVectorizer.py
@@ -7,7 +7,7 @@
 import pandas as pd
 import scipy.sparse as sp
 from sklearn.base import BaseEstimator, TransformerMixin
-from sklearn.externals import six
+##from sklearn.externals import six
 
 from auto_ml.utils import CustomLabelEncoder