diff --git a/requirements.txt b/requirements.txt
index b119d8c..78fa30c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 ipywidgets==7.4.0
 matplotlib==3.0.0
-numpy==1.15.2
+numpy==1.22.0
 pandas==0.23.4
 pyvolve==0.8.8
 scikit-learn==0.20.0