diff --git a/requirements.txt b/requirements.txt
index f053360..b8bd5d9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 # This is only used by Github and Github Actions.
-numpy==1.26.4
+numpy==2.1.1
 xarray[complete]==2024.7.0
 pandas==2.2.3
 scipy==1.14.1