diff --git a/stdlib/tkinter/__init__.pyi b/stdlib/tkinter/__init__.pyi
index 74844e94a..2a6172ba4 100644
--- a/stdlib/tkinter/__init__.pyi
+++ b/stdlib/tkinter/__init__.pyi
@@ -178,9 +178,9 @@ _CanvasItemId = int
 _Color = str  # typically '#rrggbb', '#rgb' or color names.
 _Compound = Literal["top", "left", "center", "right", "bottom", "none"]  # -compound in manual page named 'options'
 _Cursor = Union[str, tuple[str], tuple[str, str], tuple[str, str, str], tuple[str, str, str, str]]  # manual page: Tk_GetCursor
-_EntryValidateCommand = Union[
-    Callable[[], bool], str, list[str], tuple[str, ...]
-]  # example when it's sequence:  entry['invalidcommand'] = [entry.register(print), '%P']
+_EntryValidateCommand = (
+    str | list[str] | tuple[str, ...] | Callable[[], bool]
+)  # example when it's sequence:  entry['invalidcommand'] = [entry.register(print), '%P']
 _GridIndex = int | str | Literal["all"]
 _ImageSpec = _Image | str  # str can be from e.g. tkinter.image_names()
 _Padding = Union[
diff --git a/stdlib/typing.pyi b/stdlib/typing.pyi
index 88b9fbeb6..4ad3ab3da 100644
--- a/stdlib/typing.pyi
+++ b/stdlib/typing.pyi
@@ -1138,21 +1138,19 @@ class Pattern(Generic[AnyStr]):
 # Functions
 
 if sys.version_info >= (3, 7):
-    _get_type_hints_obj_allowed_types = Union[
-        object,
-        Callable[..., Any],
-        FunctionType,
-        BuiltinFunctionType,
-        MethodType,
-        ModuleType,
-        WrapperDescriptorType,
-        MethodWrapperType,
-        MethodDescriptorType,
-    ]
+    _get_type_hints_obj_allowed_types = (
+        object
+        | Callable[..., Any]
+        | FunctionType
+        | BuiltinFunctionType
+        | MethodType
+        | ModuleType
+        | WrapperDescriptorType
+        | MethodWrapperType
+        | MethodDescriptorType
+    )
 else:
-    _get_type_hints_obj_allowed_types = Union[
-        object, Callable[..., Any], FunctionType, BuiltinFunctionType, MethodType, ModuleType,
-    ]
+    _get_type_hints_obj_allowed_types = object | Callable[..., Any] | FunctionType | BuiltinFunctionType | MethodType | ModuleType
 
 if sys.version_info >= (3, 9):
     def get_type_hints(
diff --git a/stubs/Pillow/PIL/ImageDraw.pyi b/stubs/Pillow/PIL/ImageDraw.pyi
index a5424aa82..dab68e666 100644
--- a/stubs/Pillow/PIL/ImageDraw.pyi
+++ b/stubs/Pillow/PIL/ImageDraw.pyi
@@ -1,12 +1,12 @@
 from collections.abc import Container
-from typing import Any, Sequence, Union, overload
+from typing import Any, Sequence, overload
 from typing_extensions import Literal
 
 from .Image import Image
 from .ImageColor import _Ink
 from .ImageFont import _Font
 
-_XY = Sequence[Union[float, tuple[float, float]]]
+_XY = Sequence[float | tuple[float, float]]
 _Outline = Any
 
 class ImageDraw:
diff --git a/stubs/beautifulsoup4/bs4/element.pyi b/stubs/beautifulsoup4/bs4/element.pyi
index 7f6865b60..4468480a3 100644
--- a/stubs/beautifulsoup4/bs4/element.pyi
+++ b/stubs/beautifulsoup4/bs4/element.pyi
@@ -27,7 +27,6 @@ class ContentMetaAttributeValue(AttributeValueWithCharsetSubstitution):
     def encode(self, encoding: str) -> str: ...  # type: ignore[override]  # incompatible with str
 
 _PageElementT = TypeVar("_PageElementT", bound=PageElement)
-# The wrapping Union[] can be removed once mypy fully supports | in type aliases.
 _SimpleStrainable = str | bool | None | bytes | Pattern[str] | Callable[[str], bool] | Callable[[Tag], bool]
 _Strainable = _SimpleStrainable | Iterable[_SimpleStrainable]
 _SimpleNormalizedStrainable = str | bool | None | Pattern[str] | Callable[[str], bool] | Callable[[Tag], bool]
diff --git a/stubs/colorama/colorama/ansitowin32.pyi b/stubs/colorama/colorama/ansitowin32.pyi
index ba1ba3e00..0bb2694f8 100644
--- a/stubs/colorama/colorama/ansitowin32.pyi
+++ b/stubs/colorama/colorama/ansitowin32.pyi
@@ -1,7 +1,7 @@
 import sys
 from _typeshed import SupportsWrite
 from types import TracebackType
-from typing import Any, Callable, Pattern, Sequence, TextIO, Union
+from typing import Any, Callable, Pattern, Sequence, TextIO
 
 if sys.platform == "win32":
     from .winterm import WinTerm
@@ -23,7 +23,7 @@ class StreamWrapper:
     def closed(self) -> bool: ...
 
 _WinTermCall = Callable[[int | None, bool, bool], None]
-_WinTermCallDict = dict[int, Union[tuple[_WinTermCall], tuple[_WinTermCall, int], tuple[_WinTermCall, int, bool]]]
+_WinTermCallDict = dict[int, tuple[_WinTermCall] | tuple[_WinTermCall, int] | tuple[_WinTermCall, int, bool]]
 
 class AnsiToWin32:
     ANSI_CSI_RE: Pattern[str] = ...