diff --git a/googleapiclient-stubs/discovery.pyi b/googleapiclient-stubs/discovery.pyi
index fedce996..1dcfaaf0 100644
--- a/googleapiclient-stubs/discovery.pyi
+++ b/googleapiclient-stubs/discovery.pyi
@@ -1,3 +1,4 @@
+import types
 from email.generator import BytesGenerator
 from typing import Any, Protocol, TypeVar, overload
 
@@ -520,7 +521,12 @@ class Resource:
         schema,
     ) -> None: ...
     def __enter__(self: T) -> T: ...
-    def __exit__(self, exc_type, exc, exc_tb) -> None: ...
+    def __exit__(
+        self,
+        exc_type: type[BaseException] | None,
+        exc: BaseException | None,
+        exc_tb: types.TracebackType | None,
+    ) -> None: ...
     def close(self) -> None: ...
 
 class _RequestBuilder(Protocol):
diff --git a/googleapiclient-stubs/discovery_cache/base.pyi b/googleapiclient-stubs/discovery_cache/base.pyi
index 5e8895d6..d7df8a95 100644
--- a/googleapiclient-stubs/discovery_cache/base.pyi
+++ b/googleapiclient-stubs/discovery_cache/base.pyi
@@ -1,9 +1,7 @@
 import abc
 
-from _typeshed import Incomplete
-
 class Cache(metaclass=abc.ABCMeta):
-    __metaclass__: Incomplete
+    __metaclass__ = abc.ABCMeta
     @abc.abstractmethod
     def get(self, url): ...
     @abc.abstractmethod
diff --git a/googleapiclient-stubs/mimeparse.pyi b/googleapiclient-stubs/mimeparse.pyi
index 34eb35db..f8a6e78b 100644
--- a/googleapiclient-stubs/mimeparse.pyi
+++ b/googleapiclient-stubs/mimeparse.pyi
@@ -1,3 +1,4 @@
+__version__: str
 __credits__: str
 
 def parse_mime_type(mime_type): ...
diff --git a/googleapiclient-stubs/version.pyi b/googleapiclient-stubs/version.pyi
index e69de29b..bda5b5a7 100644
--- a/googleapiclient-stubs/version.pyi
+++ b/googleapiclient-stubs/version.pyi
@@ -0,0 +1 @@
+__version__: str
diff --git a/pyproject.toml b/pyproject.toml
index a953d39d..9335ba26 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,8 +20,8 @@ google-api-python-client = ">=2.107.0"
 typing-extensions = ">=3.10.0"
 
 [tool.poetry.group.dev.dependencies]
-mypy = "^1.0.1"
-black = "^23.1.0"
+mypy = {version = "^1.7.0", python = "^3.8"}
+black = {version = "^23.11.0", python = "^3.8"}
 isort = {version = "^5.12.0", python = "^3.8"}
 stubdefaulter = "^0.1.0"