diff --git a/stubs/SQLAlchemy/sqlalchemy/engine/base.pyi b/stubs/SQLAlchemy/sqlalchemy/engine/base.pyi
index 824499d311c3..80dfff42e69c 100644
--- a/stubs/SQLAlchemy/sqlalchemy/engine/base.pyi
+++ b/stubs/SQLAlchemy/sqlalchemy/engine/base.pyi
@@ -172,7 +172,7 @@ class Engine(Connectable, Identified):
     def name(self) -> str: ...
     @property
     def driver(self): ...
-    def dispose(self) -> None: ...
+    def dispose(self, close: bool = ...) -> None: ...
 
     class _trans_ctx:
         conn: Connection
diff --git a/stubs/SQLAlchemy/sqlalchemy/orm/util.pyi b/stubs/SQLAlchemy/sqlalchemy/orm/util.pyi
index 964a52d303af..23a5624b6fc7 100644
--- a/stubs/SQLAlchemy/sqlalchemy/orm/util.pyi
+++ b/stubs/SQLAlchemy/sqlalchemy/orm/util.pyi
@@ -126,10 +126,11 @@ def with_polymorphic(
     flat: bool = ...,
     polymorphic_on: Any | None = ...,
     aliased: bool = ...,
+    adapt_on_names: bool = ...,
     innerjoin: bool = ...,
     _use_mapper_path: bool = ...,
     _existing_alias: Any | None = ...,
-): ...
+) -> AliasedClass: ...
 
 class Bundle(ORMColumnsClauseRole, SupportsCloneAnnotations, sql_base.MemoizedHasCacheKey, InspectionAttr):
     single_entity: bool
diff --git a/stubs/SQLAlchemy/sqlalchemy/sql/functions.pyi b/stubs/SQLAlchemy/sqlalchemy/sql/functions.pyi
index 873b414b49c4..76058ff32451 100644
--- a/stubs/SQLAlchemy/sqlalchemy/sql/functions.pyi
+++ b/stubs/SQLAlchemy/sqlalchemy/sql/functions.pyi
@@ -3,7 +3,7 @@ from typing import Any
 from ..util import HasMemoized
 from .base import Executable, Generative
 from .elements import BinaryExpression, ColumnElement, NamedColumn
-from .selectable import FromClause
+from .selectable import FromClause, TableValuedAlias
 from .visitors import TraversibleType
 
 def register_function(identifier, fn, package: str = ...) -> None: ...
@@ -28,7 +28,7 @@ class FunctionElement(Executable, ColumnElement[Any], FromClause, Generative):
     def filter(self, *criterion): ...
     def as_comparison(self, left_index, right_index): ...
     def within_group_type(self, within_group) -> None: ...
-    def alias(self, name: Any | None = ...): ...  # type: ignore[override]
+    def alias(self, name: str | None = ..., joins_implicitly: bool = ...) -> TableValuedAlias: ...  # type: ignore[override]
     def select(self): ...
     def scalar(self): ...
     def execute(self): ...
diff --git a/stubs/SQLAlchemy/sqlalchemy/testing/engines.pyi b/stubs/SQLAlchemy/sqlalchemy/testing/engines.pyi
index 400503ba8462..2e87a4e23fad 100644
--- a/stubs/SQLAlchemy/sqlalchemy/testing/engines.pyi
+++ b/stubs/SQLAlchemy/sqlalchemy/testing/engines.pyi
@@ -43,6 +43,7 @@ def testing_engine(
     future: Any | None = ...,
     asyncio: bool = ...,
     transfer_staticpool: bool = ...,
+    _sqlite_savepoint: bool = ...,
 ): ...
 def mock_engine(dialect_name: Any | None = ...): ...