diff --git a/pyrightconfig.stricter.json b/pyrightconfig.stricter.json
index 0ca5a6161..ac04bab04 100644
--- a/pyrightconfig.stricter.json
+++ b/pyrightconfig.stricter.json
@@ -21,7 +21,6 @@
         "stdlib/xml/dom/minidom.pyi",
         "stdlib/xml/dom/pulldom.pyi",
         "stdlib/xml/sax",
-        "stubs/aiofiles/aiofiles/tempfile/temptypes.pyi",
         "stubs/aiofiles/aiofiles/threadpool/utils.pyi",
         "stubs/annoy/annoy/annoylib.pyi",
         "stubs/aws-xray-sdk",
diff --git a/stubs/aiofiles/@tests/stubtest_allowlist.txt b/stubs/aiofiles/@tests/stubtest_allowlist.txt
index a79814533..d715b3f88 100644
--- a/stubs/aiofiles/@tests/stubtest_allowlist.txt
+++ b/stubs/aiofiles/@tests/stubtest_allowlist.txt
@@ -54,7 +54,6 @@ aiofiles.ospath.sameopenfile
 aiofiles.tempfile.temptypes.AsyncSpooledTemporaryFile.fileno
 aiofiles.tempfile.temptypes.AsyncSpooledTemporaryFile.flush
 aiofiles.tempfile.temptypes.AsyncSpooledTemporaryFile.isatty
-aiofiles.tempfile.temptypes.AsyncSpooledTemporaryFile.newlines
 aiofiles.tempfile.temptypes.AsyncSpooledTemporaryFile.rollover
 aiofiles.tempfile.temptypes.AsyncSpooledTemporaryFile.tell
 aiofiles.tempfile.temptypes.AsyncTemporaryDirectory.cleanup
diff --git a/stubs/aiofiles/aiofiles/tempfile/temptypes.pyi b/stubs/aiofiles/aiofiles/tempfile/temptypes.pyi
index db6f26b55..61fdfb608 100644
--- a/stubs/aiofiles/aiofiles/tempfile/temptypes.pyi
+++ b/stubs/aiofiles/aiofiles/tempfile/temptypes.pyi
@@ -1,6 +1,7 @@
 from _typeshed import Incomplete
 from asyncio import AbstractEventLoop
-from collections.abc import Generator
+from collections.abc import Generator, Iterable
+from tempfile import TemporaryDirectory, _BytesMode
 from types import coroutine as coroutine
 from typing import TypeVar
 
@@ -18,29 +19,33 @@ class AsyncSpooledTemporaryFile(AsyncBase[_T]):
     def rollover(self) -> Generator[Incomplete, Incomplete, Incomplete]: ...
     async def flush(self) -> None: ...
     async def isatty(self) -> bool: ...
-    async def read(self, __n: int = ...): ...
-    async def readline(self, __limit: int | None = ...): ...
-    async def readlines(self, __hint: int = ...): ...
+    # All must return `AnyStr`:
+    async def read(self, __n: int = ...) -> Incomplete: ...
+    async def readline(self, __limit: int | None = ...) -> Incomplete: ...
+    async def readlines(self, __hint: int = ...) -> list[Incomplete]: ...
+    # ---
     async def seek(self, offset: int, whence: int = ...) -> int: ...
     async def tell(self) -> int: ...
     async def truncate(self, size: int | None = ...) -> None: ...
     @property
-    def closed(self): ...
+    def closed(self) -> bool: ...
     @property
-    def encoding(self): ...
+    def encoding(self) -> str: ...
     @property
-    def mode(self): ...
+    def mode(self) -> _BytesMode: ...
     @property
-    def name(self): ...
-    async def newlines(self): ...
+    def name(self) -> str: ...
     @property
-    def softspace(self): ...
-    async def write(self, s): ...
-    async def writelines(self, iterable): ...
+    def newlines(self) -> str: ...
+    # Both should work with `AnyStr`, like in `tempfile`:
+    async def write(self, s: Incomplete) -> int: ...
+    async def writelines(self, iterable: Iterable[Incomplete]) -> None: ...
 
 class AsyncTemporaryDirectory:
     async def cleanup(self) -> None: ...
     @property
-    def name(self): ...
-    def __init__(self, file, loop: AbstractEventLoop | None, executor: Incomplete | None) -> None: ...
+    def name(self) -> Incomplete: ...  # should be `AnyStr`
+    def __init__(
+        self, file: TemporaryDirectory[Incomplete], loop: AbstractEventLoop | None, executor: Incomplete | None
+    ) -> None: ...
     async def close(self) -> None: ...
diff --git a/stubs/aiofiles/aiofiles/threadpool/utils.pyi b/stubs/aiofiles/aiofiles/threadpool/utils.pyi
index 341396135..afff76d0d 100644
--- a/stubs/aiofiles/aiofiles/threadpool/utils.pyi
+++ b/stubs/aiofiles/aiofiles/threadpool/utils.pyi
@@ -1,6 +1,11 @@
+from collections.abc import Callable
 from types import coroutine as coroutine
+from typing import TypeVar
 
-def delegate_to_executor(*attrs): ...
-def proxy_method_directly(*attrs): ...
-def proxy_property_directly(*attrs): ...
-def cond_delegate_to_executor(*attrs): ...
+_T = TypeVar("_T", bound=type)
+
+# All these function actually mutate the given type:
+def delegate_to_executor(*attrs: str) -> Callable[[_T], _T]: ...
+def proxy_method_directly(*attrs: str) -> Callable[[_T], _T]: ...
+def proxy_property_directly(*attrs: str) -> Callable[[_T], _T]: ...
+def cond_delegate_to_executor(*attrs: str) -> Callable[[_T], _T]: ...