diff --git a/requirements.txt b/requirements.txt
index e5aa16739..f928fe964 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ xmltodict
 nose
 requests
 scikit-learn>=0.18
+nbconvert
 nbformat
 python-dateutil
-oslo.concurrency
\ No newline at end of file
+oslo.concurrency