diff --git a/tests/test_text_classifier.py b/tests/test_text_classifier.py
index 0a24663..394e6d6 100644
--- a/tests/test_text_classifier.py
+++ b/tests/test_text_classifier.py
@@ -11,10 +11,9 @@
 import os
 import codecs
 import numpy as np
-from sklearn.cross_validation import train_test_split
+from sklearn.model_selection import train_test_split
 from sklearn.datasets import fetch_20newsgroups
 sys.path.insert(0, os.path.abspath('..'))
-
 from textar import TextClassifier
 
 
diff --git a/textar/text_classifier.py b/textar/text_classifier.py
index 30488e9..429cced 100644
--- a/textar/text_classifier.py
+++ b/textar/text_classifier.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 u"""Módulo de clasificación de textos.
 
 Este módulo contiene a los objetos que permiten entrenar un clasificador