diff --git a/requirements.txt b/requirements.txt
index 73a074bb..20394a64 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # This is used to build the CI test environment and so Github can track dependencies.
 xarray==2024.3.0
 pandas==2.2.2
-numpy==1.26.4
+numpy==2.1.1
 matplotlib==3.9.2
 dask[array, distributed]==2024.9.1
 requests==2.32.3