diff --git a/python-requirements-dev.txt b/python-requirements-dev.txt
index 7ad3968..a085b80 100755
--- a/python-requirements-dev.txt
+++ b/python-requirements-dev.txt
@@ -7,12 +7,16 @@ nose==1.3.7
 num2words==0.5.5
 pandas==0.21.0
 psutil==5.4.0
+pylint==1.7.2
+pytest==3.2.1
+pytest-cache==1.0
 pytest-cov==2.5.1
 pytest-pep8==1.0.6
 pytest-pylint==0.7.1
 pytest-xdist==1.20.1
+python-coveralls==2.9.1
 reporters-db==1.0.12.1
 requests==2.18.4
 scipy==1.0.0
 scikit-learn==0.19.1
-Unidecode==0.4.21
\ No newline at end of file
+Unidecode==0.4.21