diff --git a/requirements.txt b/requirements.txt
index 474ce57..21b1d10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ cftime==1.1.3
 docutils==0.15.2
 jmespath==0.10.0
 netCDF4==1.5.3
-numpy==1.18.5
+numpy==1.22.0
 python-dateutil==2.8.1
 s3transfer==0.3.3
 six==1.15.0