diff --git a/requirements.txt b/requirements.txt
index 24e60e6..716d35c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ attrs==19.3.0
 f90nml==1.1.2
 importlib-metadata==0.23
 more-itertools==7.2.0
-numpy==1.17.4
+numpy==1.22.0
 packaging==19.2
 pluggy==0.13.1
 py==1.8.0