diff --git a/django-stubs/core/management/__init__.pyi b/django-stubs/core/management/__init__.pyi
index a357e0f..4ff3c2d 100644
--- a/django-stubs/core/management/__init__.pyi
+++ b/django-stubs/core/management/__init__.pyi
@@ -1,6 +1,6 @@
 from typing import Any, Dict, List, Optional, Tuple, Union
 
-from django.core.management.base import BaseCommand
+from django.core.management.base import BaseCommand as BaseCommand
 
 def find_commands(management_dir: str) -> List[str]: ...
 def load_command_class(app_name: str, name: str) -> BaseCommand: ...
diff --git a/django-stubs/core/validators.pyi b/django-stubs/core/validators.pyi
index f200942..9f55869 100644
--- a/django-stubs/core/validators.pyi
+++ b/django-stubs/core/validators.pyi
@@ -1,7 +1,7 @@
 from datetime import datetime
 from decimal import Decimal
 from re import RegexFlag
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Dict, List, Optional, Union, Pattern
 from uuid import UUID
 
 from django.core.files.base import File
@@ -9,6 +9,8 @@ from django.utils.functional import SimpleLazyObject
 
 EMPTY_VALUES: Any
 
+def _lazy_re_compile(regex: Union[str, Pattern], flags: int = ...): ...
+
 class RegexValidator:
     regex: SimpleLazyObject = ...
     message: Any = ...
diff --git a/django-stubs/http/request.pyi b/django-stubs/http/request.pyi
index 4b110b4..84f96c3 100644
--- a/django-stubs/http/request.pyi
+++ b/django-stubs/http/request.pyi
@@ -31,12 +31,15 @@ class HttpRequest(BinaryIO):
     def __init__(self) -> None: ...
     def get_host(self) -> str: ...
     def get_port(self) -> str: ...
-    def get_full_path(self, force_append_slash: bool = False) -> str: ...
-    def get_signed_cookie(self, key: str, default: str = ..., salt: str = "", max_age: int = None) -> str: ...
+    def get_full_path(self, force_append_slash: bool = ...) -> str: ...
+    def get_full_path_info(self, force_append_slash: bool = ...) -> str: ...
+    def get_signed_cookie(
+        self, key: str, default: Any = ..., salt: str = ..., max_age: Optional[int] = ...
+    ) -> Optional[str]: ...
     def get_raw_uri(self) -> str: ...
-    def build_absolute_uri(self, location: str = None) -> str: ...
+    def build_absolute_uri(self, location: str = ...) -> str: ...
     @property
-    def scheme(self) -> str: ...
+    def scheme(self) -> Optional[str]: ...
     def is_secure(self) -> bool: ...
     def is_ajax(self) -> bool: ...
     encoding = ...  # type: Optional[str]