diff --git a/requirements.txt b/requirements.txt
index 280e122..92fa337 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ matplotlib==2.2.2
 nbconvert==5.5.0
 nbgrader==0.6.1
 nbstripout==0.3.6
-numpy==1.16.4
+numpy==1.22.0
 pandas==1.0.1
 requests==2.22.0
 seaborn==0.9.0