diff --git a/requirements.txt b/requirements.txt
index dd91dc8ae3..c8e8505831 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,7 @@ tqdm
 psutil
 pathlib==1.0.1
 scandir==1.7
+numpy==1.15.4
 opencv-python
 scikit-image
 scikit-learn