diff --git a/requirements.txt b/requirements.txt
index 6f66448..a9cf329 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ kiwisolver==1.1.0
 matplotlib==3.1.2
 mpi4py==3.0.3
 netCDF4==1.5.3
-numpy==1.17.4
+numpy==1.22.0
 pkg-resources==0.0.0
 pyparsing==2.4.5
 python-dateutil==2.8.1