diff --git a/requirements.txt b/requirements.txt
index 7612fb9..55b323f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ cfunits==1.5.1
 influxdb==4.1.0
 matplotlib==1.5.1
 netCDF4==1.2.4
-numpy==1.11.0
+numpy==1.22.0
 Pillow==5.2.0
 python-dateutil==2.5.1
 scipy==0.17.1