diff --git a/requirements.txt b/requirements.txt
index f6e9d12..3745d64 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ matplotlib==3.0.2
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.7
-numpy==1.15.4
+numpy==1.22.0
 packaging==20.4
 pandas==0.23.4
 pandocfilters==1.4.2