diff --git a/mypy.ini b/mypy.ini
index dddd808b..0c09ee80 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -18,10 +18,6 @@ warn_return_any = True
 no_implicit_reexport = True
 strict_equality = True
 
-[mypy-pkginfo]
-; https://bugs.launchpad.net/pkginfo/+bug/1876591
-ignore_missing_imports = True
-
 [mypy-requests_toolbelt,requests_toolbelt.*]
 ; https://github.com/requests/toolbelt/issues/279
 ignore_missing_imports = True
diff --git a/setup.cfg b/setup.cfg
index c8e59629..7308cecf 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -35,7 +35,7 @@ packages =
     twine.commands
 python_requires = >=3.7
 install_requires=
-    pkginfo >= 1.8.1, < 1.9.3  # https://github.com/pypa/twine/issues/971
+    pkginfo >= 1.8.1
     readme-renderer >= 35.0
     requests >= 2.20
     requests-toolbelt >= 0.8.0, != 0.9.0
diff --git a/twine/package.py b/twine/package.py
index 3ca074fe..5c101033 100644
--- a/twine/package.py
+++ b/twine/package.py
@@ -17,7 +17,7 @@
 import os
 import re
 import subprocess
-from typing import Dict, NamedTuple, Optional, Sequence, Tuple, Union
+from typing import Dict, NamedTuple, Optional, Sequence, Tuple, Union, cast
 
 import importlib_metadata
 import pkginfo
@@ -43,7 +43,7 @@
     ".zip": "sdist",
 }
 
-MetadataValue = Union[str, Sequence[str]]
+MetadataValue = Union[Optional[str], Sequence[str], Tuple[str, bytes]]
 
 logger = logging.getLogger(__name__)
 
@@ -129,9 +129,9 @@ def from_filename(cls, filename: str, comment: Optional[str]) -> "PackageFile":
             )
             py_version = dist.metadata["Version"]
         elif dtype == "bdist_wheel":
-            py_version = meta.py_version
+            py_version = cast(wheel.Wheel, meta).py_version
         elif dtype == "bdist_wininst":
-            py_version = meta.py_version
+            py_version = cast(wininst.WinInst, meta).py_version
         else:
             py_version = None
 
@@ -143,7 +143,7 @@ def metadata_dictionary(self) -> Dict[str, MetadataValue]:
         Includes values from filename, PKG-INFO, hashers, and signature.
         """
         meta = self.metadata
-        data = {
+        data: Dict[str, MetadataValue] = {
             # identify release
             "name": self.safe_name,
             "version": meta.version,