diff --git a/tests/test_bdist.py b/tests/test_bdist.py
deleted file mode 100644
index a7dfcab9..00000000
--- a/tests/test_bdist.py
+++ /dev/null
@@ -1,94 +0,0 @@
-# Copyright 2024 Daniele Nicolodi
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-import os
-import pathlib
-import re
-import zipfile
-
-import pytest
-
-from twine import bdist
-from twine import exceptions
-
-from . import helpers
-
-
-@pytest.fixture(
-    params=[
-        "fixtures/twine-3.3.0-py3.9.egg",
-    ]
-)
-def example_bdist(request):
-    file_name = os.path.join(helpers.TESTS_DIR, request.param)
-    return bdist.BDist(file_name)
-
-
-def test_read_valid(example_bdist):
-    """Parse metadata from a valid sdist file."""
-    metadata = example_bdist.read()
-    assert b"Metadata-Version: 1.2" in metadata
-    assert b"Name: twine" in metadata
-    assert b"Version: 3.3.0" in metadata
-
-
-def test_read_non_existent():
-    """Raise an exception when sdist file doesn't exist."""
-    file_name = str(pathlib.Path("/foo/bar/baz.egg").resolve())
-    with pytest.raises(
-        exceptions.InvalidDistribution, match=re.escape(f"No such file: {file_name}")
-    ):
-        bdist.BDist(file_name).read()
-
-
-def test_no_metadata(monkeypatch):
-    """Raise an exception when sdist does not contain PKG-INFO."""
-    file_name = os.path.join(helpers.TESTS_DIR, "fixtures/twine-3.3.0-py3.9.egg")
-    monkeypatch.setattr(zipfile.ZipFile, "namelist", lambda x: [])
-    with pytest.raises(
-        exceptions.InvalidDistribution, match=re.escape("No PKG-INFO in archive")
-    ):
-        bdist.BDist(file_name).read()
-
-
-def test_invalid_metadata(monkeypatch):
-    """Raise an exception when PKG-INFO does not contain ``Metadata-Version``."""
-    monkeypatch.setattr(zipfile.ZipFile, "read", lambda x, n: b"")
-    file_name = os.path.join(helpers.TESTS_DIR, "fixtures/twine-3.3.0-py3.9.egg")
-    with pytest.raises(
-        exceptions.InvalidDistribution, match=re.escape("No PKG-INFO in archive")
-    ):
-        bdist.BDist(file_name).read()
-
-
-def test_multiple_pkginfo(monkeypatch):
-    """Find the right PKG-INFO."""
-    file_name = os.path.join(helpers.TESTS_DIR, "fixtures/twine-3.3.0-py3.9.egg")
-    namelist = zipfile.ZipFile.namelist
-
-    def patch(self):
-        return [
-            "twine-3.3.0/twine/PKG-INFO",
-            *namelist(self),
-            "twine-3.3.0/examples/PKG-INFO",
-        ]
-
-    monkeypatch.setattr(zipfile.ZipFile, "namelist", patch)
-    metadata = bdist.BDist(file_name).read()
-    assert b"Metadata-Version: 1.2" in metadata
-    assert b"Name: twine" in metadata
-    assert b"Version: 3.3.0" in metadata
-
-
-def test_py_version(example_bdist):
-    assert example_bdist.py_version == "3.9"
diff --git a/twine/package.py b/twine/package.py
index e7cb5533..80c17fe5 100644
--- a/twine/package.py
+++ b/twine/package.py
@@ -47,7 +47,7 @@
 
 DIST_TYPES = {
     "wheel": wheel.Wheel,
-    "sdist": pkginfo.SDist,
+    "sdist": sdist.SDist,
 }
 
 DIST_EXTENSIONS = {