diff --git a/django-stubs/test/client.pyi b/django-stubs/test/client.pyi
index 5758239f1..44d50163a 100644
--- a/django-stubs/test/client.pyi
+++ b/django-stubs/test/client.pyi
@@ -1,3 +1,4 @@
+from collections.abc import Mapping
 from io import BytesIO
 from json import JSONEncoder
 from re import Pattern
@@ -47,7 +48,11 @@ class RequestFactory:
     cookies: SimpleCookie
     errors: BytesIO
     def __init__(
-        self, *, json_encoder: type[JSONEncoder] = ..., **defaults: Any
+        self,
+        *,
+        json_encoder: type[JSONEncoder] = ...,
+        headers: Mapping[str, Any] | None = ...,
+        **defaults: Any,
     ) -> None: ...
     def request(self, **request: Any) -> WSGIRequest: ...
     def get(
@@ -57,7 +62,8 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def post(
         self,
@@ -67,7 +73,8 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def head(
         self,
@@ -76,10 +83,17 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def trace(
-        self, path: str, secure: bool = ..., *, QUERY_STRING: str = ..., **extra: str
+        self,
+        path: str,
+        secure: bool = ...,
+        *,
+        QUERY_STRING: str = ...,
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def options(
         self,
@@ -89,7 +103,8 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def put(
         self,
@@ -99,7 +114,8 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def patch(
         self,
@@ -109,7 +125,8 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def delete(
         self,
@@ -119,7 +136,8 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
     def generic(
         self,
@@ -130,20 +148,23 @@ class RequestFactory:
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> WSGIRequest: ...
 
 class Client(RequestFactory):
     handler: ClientHandler
     raise_request_exception: bool
     exc_info: tuple[type[BaseException], BaseException, TracebackType] | None
+    headers: dict[str, Any]
     def __init__(
         self,
         enforce_csrf_checks: bool = ...,
         raise_request_exception: bool = ...,
         *,
         json_encoder: type[JSONEncoder] = ...,
-        **defaults: Any
+        headers: Mapping[str, Any] | None = ...,
+        **defaults: Any,
     ) -> None: ...
     # Silence type warnings, since this class overrides arguments and return types in an unsafe manner.
     def request(self, **request: Any) -> HttpResponse: ...  # type: ignore [override]
@@ -155,7 +176,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def post(  # type: ignore [override]
         self,
@@ -166,7 +188,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def head(  # type: ignore [override]
         self,
@@ -176,7 +199,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def trace(  # type: ignore [override]
         self,
@@ -186,7 +210,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def options(  # type: ignore [override]
         self,
@@ -197,7 +222,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def put(  # type: ignore [override]
         self,
@@ -208,7 +234,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def patch(  # type: ignore [override]
         self,
@@ -219,7 +246,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def delete(  # type: ignore [override]
         self,
@@ -230,7 +258,8 @@ class Client(RequestFactory):
         secure: bool = ...,
         *,
         QUERY_STRING: str = ...,
-        **extra: str
+        headers: Mapping[str, Any] | None = ...,
+        **extra: str,
     ) -> HttpResponse: ...
     def store_exc_info(self, **kwargs: Any) -> None: ...
     @property