diff --git a/requirements.txt b/requirements.txt
index 601a674..6ba2735 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,6 @@ landlab>=2
 matplotlib
 model_metadata>=0.7
 netcdf4
-numpy<1.24  # for Ku
 pyyaml
 scipy<1.9  # see #162
 shapely<2  # see #164