diff --git a/pyproject.toml b/pyproject.toml
index 21c6f165..2c81e8f8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ dependencies = [
   "pint",
   "tqdm",
   "numpy>=2.0,<3",
-  "xarray==2025.7.1"
+  "xarray==2026.4.0"
 ]
 description = "gdsfactory plugins"
 keywords = ["python"]