diff --git a/tests/test_package.py b/tests/test_package.py
index 0b883da3..63690ad4 100644
--- a/tests/test_package.py
+++ b/tests/test_package.py
@@ -340,20 +340,35 @@ def test_fips_metadata_excludes_md5_and_blake2(monkeypatch):
     "read_data, missing_fields",
     [
         pytest.param(
-            b"Metadata-Version: 2.3\nName: test-package\nVersion: 1.0.0\n",
+            b"Metadata-Version: 102.3\nName: test-package\nVersion: 1.0.0\n",
             "Name, Version",
             id="unsupported Metadata-Version",
         ),
+        pytest.param(
+            b"Metadata-Version: 2.3\nName: UNKNOWN\nVersion: UNKNOWN\n",
+            "Name, Version",
+            id="missing Name and Version",
+        ),
         pytest.param(
             b"Metadata-Version: 2.2\nName: UNKNOWN\nVersion: UNKNOWN\n",
             "Name, Version",
             id="missing Name and Version",
         ),
+        pytest.param(
+            b"Metadata-Version: 2.3\nName: UNKNOWN\nVersion: 1.0.0\n",
+            "Name",
+            id="missing Name",
+        ),
         pytest.param(
             b"Metadata-Version: 2.2\nName: UNKNOWN\nVersion: 1.0.0\n",
             "Name",
             id="missing Name",
         ),
+        pytest.param(
+            b"Metadata-Version: 2.3\nName: test-package\nVersion: UNKNOWN\n",
+            "Version",
+            id="missing Version",
+        ),
         pytest.param(
             b"Metadata-Version: 2.2\nName: test-package\nVersion: UNKNOWN\n",
             "Version",
diff --git a/twine/cli.py b/twine/cli.py
index 46d6d01b..debe6199 100644
--- a/twine/cli.py
+++ b/twine/cli.py
@@ -118,6 +118,6 @@ def dispatch(argv: List[str]) -> Any:
 
     configure_output()
 
-    main = registered_commands[args.command].load()  # type: ignore[no-untyped-call] # python/importlib_metadata#288  # noqa: E501
+    main = registered_commands[args.command].load()
 
     return main(args.args)
diff --git a/twine/wheel.py b/twine/wheel.py
index cf90eab7..7af1d804 100644
--- a/twine/wheel.py
+++ b/twine/wheel.py
@@ -16,6 +16,7 @@
 import re
 import zipfile
 from typing import List, Optional
+from typing import cast as type_cast
 
 from pkginfo import distribution
 
@@ -87,5 +88,7 @@ def parse(self, data: bytes) -> None:
         super().parse(data)
 
         fp = io.StringIO(data.decode("utf-8", errors="replace"))
+        # msg is ``email.message.Message`` which is a legacy API documented
+        # here: https://docs.python.org/3/library/email.compat32-message.html
         msg = distribution.parse(fp)
-        self.description = msg.get_payload()
+        self.description = type_cast(str, msg.get_payload())