diff --git a/requirements.txt b/requirements.txt
index 2263cc1..192f7eb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -47,7 +47,7 @@ more-itertools==5.0.0
 nbconvert==5.4.0
 nbformat==4.4.0
 notebook==5.7.4
-numpy==1.15.4
+numpy==1.22.0
 pandas==0.23.4
 pandocfilters==1.4.2
 parsimonious==0.8.1