diff --git a/docs/index.rst b/docs/index.rst
index c161708..54d2600 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -12,6 +12,7 @@ ncdata
    :alt: ncdata logo
 
 NetCDF data interoperability.
+TEST VERSION
 
 Represents generic netcdf data as Python objects, equivalent to actual data
 files, but independent and freely modifiable.
diff --git a/tests/integration/test_xarray_load_and_save_equivalence.py b/tests/integration/test_xarray_load_and_save_equivalence.py
index a914813..fce4053 100644
--- a/tests/integration/test_xarray_load_and_save_equivalence.py
+++ b/tests/integration/test_xarray_load_and_save_equivalence.py
@@ -68,7 +68,7 @@ def test_save_direct_vs_viancdata(standard_testcase, tmp_path):
 
     # Re-save from Xarray
     temp_direct_savepath = tmp_path / "temp_save_xarray.nc"
-    xrds.to_netcdf(temp_direct_savepath)
+    xrds.to_netcdf(temp_direct_savepath, engine="netcdf4")
     # Save same, via ncdata
     temp_ncdata_savepath = tmp_path / "temp_save_xarray_via_ncdata.nc"
     ncds_fromxr = from_xarray(xrds)