diff --git a/xarray/core/duck_array_ops.py b/xarray/core/duck_array_ops.py
index 0c7d40113d6..26946d21cff 100644
--- a/xarray/core/duck_array_ops.py
+++ b/xarray/core/duck_array_ops.py
@@ -247,7 +247,7 @@ def astype(data, dtype, *, xp=None, **kwargs):
         xp = get_array_namespace(data)
 
     if xp == np:
-        # numpy currently doesn't have a astype:
+        # numpy<2 and dask don't have astype in their namespace
         return data.astype(dtype, **kwargs)
     return xp.astype(data, dtype, **kwargs)