diff --git a/setup.py b/setup.py
index 38a23dd4..3f6e4476 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
     'Click>=6.0',
     'python-crfsuite==0.9.6',
     'nltk==3.4',
-    'languageflow==1.1.9a1'
+    'languageflow==1.1.13a1'
 ]
 
 tests_require = [
diff --git a/tox.ini b/tox.ini
index 6043c075..80750337 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,7 +21,6 @@ commands =
 
     ; classification module
     pip install Cython
-    pip install future scipy numpy scikit-learn==0.19.2 joblib
     pip install -U fasttext==0.8.3 --no-cache-dir --no-deps --force-reinstall
     python underthesea/util/data.py
     python -m unittest discover tests.classification