diff --git a/requirements.txt b/requirements.txt
index c6a1e399b..7ceb3b850 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,6 +9,7 @@ pandas==0.20.3
 scikit-learn==0.19.0
 scipy==0.19.1
 jsonschema==2.6.0
+numpy==1.13.3
 TA-Lib==0.4.10
 
 # Required for plotting data