diff --git a/requirements.txt b/requirements.txt
index 143d818..c31e156 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ nbconvert==5.6.0
 nbformat==4.4.0
 netCDF4==1.5.3
 notebook==6.0.1
-numpy==1.17.3
+numpy==1.22.0
 pandas==0.25.2
 pandocfilters==1.4.2
 parso==0.5.1