diff --git a/xvec/accessor.py b/xvec/accessor.py
index a779bb8..f9d49a1 100644
--- a/xvec/accessor.py
+++ b/xvec/accessor.py
@@ -919,7 +919,7 @@ def zonal_stats(
         x_coords: Hashable,
         y_coords: Hashable,
         stats: str | Callable | Sequence[str | Callable | tuple] = "mean",
-        name: Hashable = "geometry",
+        name: str = "geometry",
         index: bool | None = None,
         method: str = "rasterize",
         all_touched: bool = False,
@@ -959,7 +959,7 @@ def zonal_stats(
             :meth:`~xarray.DataArray.reduce` or a list with ``strings``, ``callables``
             or ``tuples`` in a ``(name, func, {kwargs})`` format, where ``func`` can be
             a string or a callable.
-        name : Hashable, optional
+        name : str, optional
             Name of the dimension that will hold the ``geometry``, by default "geometry"
         index : bool, optional
             If ``geometry`` is a :class:`~geopandas.GeoSeries`, ``index=True`` will
diff --git a/xvec/zonal.py b/xvec/zonal.py
index 9e29d86..5ed8159 100644
--- a/xvec/zonal.py
+++ b/xvec/zonal.py
@@ -30,7 +30,7 @@ def _zonal_stats_rasterize(
     x_coords: Hashable,
     y_coords: Hashable,
     stats: str | Callable | Sequence[str | Callable | tuple] = "mean",
-    name: Hashable = "geometry",
+    name: str = "geometry",
     all_touched: bool = False,
     **kwargs,
 ) -> xr.DataArray | xr.Dataset:
@@ -105,7 +105,7 @@ def _zonal_stats_iterative(
     x_coords: Hashable,
     y_coords: Hashable,
     stats: str | Callable | Sequence[str | Callable | tuple] = "mean",
-    name: Hashable = "geometry",
+    name: str = "geometry",
     all_touched: bool = False,
     n_jobs: int = -1,
     **kwargs: dict[str, Any],
@@ -133,7 +133,7 @@ def _zonal_stats_iterative(
         :meth:`~xarray.DataArray.max`, or :meth:`~xarray.DataArray.quantile`,
         methods are available. Alternatively, you can pass a ``Callable`` supported
         by :meth:`~xarray.DataArray.reduce`.
-    name : Hashable, optional
+    name : str, optional
         Name of the dimension that will hold the ``geometry``, by default "geometry"
     all_touched : bool, optional
         If True, all pixels touched by geometries will be considered. If False, only