From f04aa864ec34ace0edaa2e411957aab51d19546d Mon Sep 17 00:00:00 2001
From: Stephan Hoyer <shoyer@google.com>
Date: Mon, 27 Oct 2025 20:33:30 -0700
Subject: [PATCH] Fix typing issue with numpy 2.3.4

---
 xarray/namedarray/dtypes.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xarray/namedarray/dtypes.py b/xarray/namedarray/dtypes.py
index b4a3d6a518e..0e81e5b674c 100644
--- a/xarray/namedarray/dtypes.py
+++ b/xarray/namedarray/dtypes.py
@@ -79,7 +79,7 @@ def maybe_promote(dtype: np.dtype[np.generic]) -> tuple[np.dtype[np.generic], An
         dtype_ = dtype
         fill_value = np.datetime64("NaT")
     else:
-        dtype_ = object
+        dtype_ = np.object_
         fill_value = np.nan
 
     dtype_out = np.dtype(dtype_)