diff --git a/stubs/PyYAML/yaml/constructor.pyi b/stubs/PyYAML/yaml/constructor.pyi
index c79680240..734269078 100644
--- a/stubs/PyYAML/yaml/constructor.pyi
+++ b/stubs/PyYAML/yaml/constructor.pyi
@@ -2,7 +2,6 @@ from collections.abc import Callable, Hashable
 from datetime import date
 from re import Pattern
 from typing import Any, ClassVar, TypeVar
-from typing_extensions import TypeAlias
 
 from yaml.error import MarkedYAMLError
 from yaml.nodes import MappingNode, Node, ScalarNode, SequenceNode
@@ -13,8 +12,6 @@ from .loader import _Loader
 _L = TypeVar("_L", bound=_Loader | _CLoader)
 _N = TypeVar("_N", bound=Node)
 
-_Scalar: TypeAlias = str | int | float | bool | None
-
 class ConstructorError(MarkedYAMLError): ...
 
 class BaseConstructor:
@@ -31,7 +28,7 @@ class BaseConstructor:
     def get_single_data(self) -> Any: ...
     def construct_document(self, node): ...
     def construct_object(self, node, deep=False): ...
-    def construct_scalar(self, node: ScalarNode) -> _Scalar: ...
+    def construct_scalar(self, node: ScalarNode) -> str: ...
     def construct_sequence(self, node: SequenceNode, deep: bool = False) -> list[Any]: ...
     def construct_mapping(self, node: MappingNode, deep: bool = False) -> dict[Hashable, Any]: ...
     def construct_pairs(self, node, deep=False): ...
@@ -42,7 +39,7 @@ class BaseConstructor:
     def add_multi_constructor(cls, tag_prefix, multi_constructor): ...
 
 class SafeConstructor(BaseConstructor):
-    def construct_scalar(self, node: ScalarNode) -> _Scalar: ...
+    def construct_scalar(self, node: ScalarNode) -> str: ...
     def flatten_mapping(self, node: MappingNode) -> None: ...
     def construct_mapping(self, node: MappingNode, deep: bool = False) -> dict[Hashable, Any]: ...
     def construct_yaml_null(self, node: ScalarNode) -> None: ...