diff --git a/glass/galaxies.py b/glass/galaxies.py
index 5cf0dda7..96891010 100644
--- a/glass/galaxies.py
+++ b/glass/galaxies.py
@@ -296,7 +296,7 @@ def gaussian_phz(
 
 
 def kappa_ia_nla(  # noqa: PLR0913
-    delta: npt.NDArray[typing.Any],
+    delta: npt.NDArray[np.float64],
     zeff: float,
     a_ia: float,
     cosmo: Cosmology,
@@ -306,7 +306,7 @@ def kappa_ia_nla(  # noqa: PLR0913
     lbar: float = 0.0,
     l0: float = 1e-9,
     beta: float = 0.0,
-) -> npt.NDArray[typing.Any]:
+) -> npt.NDArray[np.float64]:
     r"""
     Effective convergence from intrinsic alignments using the NLA model.
 
diff --git a/glass/user.py b/glass/user.py
index 00ce8c60..606a3b44 100644
--- a/glass/user.py
+++ b/glass/user.py
@@ -27,6 +27,7 @@
 
 if typing.TYPE_CHECKING:
     import collections.abc
+    import pathlib
 
 
 def save_cls(filename: str, cls: list[npt.NDArray[np.float64] | None]) -> None:
@@ -106,7 +107,7 @@ def write(
 
 @contextmanager
 def write_catalog(
-    filename: str,
+    filename: pathlib.Path,
     *,
     ext: str | None = None,
 ) -> collections.abc.Generator[_FitsWriter]:
diff --git a/tests/test_fits.py b/tests/test_fits.py
index f9349001..09dbab22 100644
--- a/tests/test_fits.py
+++ b/tests/test_fits.py
@@ -1,5 +1,4 @@
 import importlib.util
-import os
 import pathlib
 
 import numpy as np
@@ -28,15 +27,15 @@ def _test_append(fits, data, names) -> None:  # type: ignore[no-untyped-def]
 
 
 @pytest.mark.skipif(not HAVE_FITSIO, reason="test requires fitsio")
-def test_basic_write(tmp_path: os.PathLike[str]) -> None:
+def test_basic_write(tmp_path: pathlib.Path) -> None:
     import fitsio
 
     filename_gfits = "gfits.fits"  # what GLASS creates
     filename_tfits = "tfits.fits"  # file created on the fly to test against
 
     with (
-        user.write_catalog(tmp_path / filename_gfits, ext="CATALOG") as out,  # type: ignore[operator]
-        fitsio.FITS(tmp_path / filename_tfits, "rw", clobber=True) as my_fits,  # type: ignore[operator]
+        user.write_catalog(tmp_path / filename_gfits, ext="CATALOG") as out,
+        fitsio.FITS(tmp_path / filename_tfits, "rw", clobber=True) as my_fits,
     ):
         for i in range(my_max):
             array = np.arange(i, i + 1, delta)  # array of size 1/delta
@@ -47,8 +46,8 @@ def test_basic_write(tmp_path: os.PathLike[str]) -> None:
             _test_append(my_fits, arrays, names)
 
     with (
-        fitsio.FITS(tmp_path / filename_gfits) as g_fits,  # type: ignore[operator]
-        fitsio.FITS(tmp_path / filename_tfits) as t_fits,  # type: ignore[operator]
+        fitsio.FITS(tmp_path / filename_gfits) as g_fits,
+        fitsio.FITS(tmp_path / filename_tfits) as t_fits,
     ):
         glass_data = g_fits[1].read()
         test_data = t_fits[1].read()
@@ -59,7 +58,7 @@ def test_basic_write(tmp_path: os.PathLike[str]) -> None:
 @pytest.mark.skipif(not HAVE_FITSIO, reason="test requires fitsio")
 def test_write_exception(tmp_path: pathlib.Path) -> None:
     try:
-        with user.write_catalog(tmp_path / filename, ext="CATALOG") as out:  # type: ignore[arg-type]
+        with user.write_catalog(tmp_path / filename, ext="CATALOG") as out:
             for i in range(my_max):
                 if i == except_int:
                     msg = "Unhandled exception"