diff --git a/fastapi_users/authentication/transport/cookie.py b/fastapi_users/authentication/transport/cookie.py
index 6fa8e198..372a5eb5 100644
--- a/fastapi_users/authentication/transport/cookie.py
+++ b/fastapi_users/authentication/transport/cookie.py
@@ -30,6 +30,7 @@ class CookieTransport(Transport):
         self.scheme = APIKeyCookie(name=self.cookie_name, auto_error=False)
 
     async def get_login_response(self, token: str, response: Response) -> Any:
+        response = Response(status_code=status.HTTP_204_NO_CONTENT)
         response.set_cookie(
             self.cookie_name,
             token,
@@ -40,10 +41,7 @@ class CookieTransport(Transport):
             httponly=self.cookie_httponly,
             samesite=self.cookie_samesite,
         )
-
-        # We shouldn't return directly the response
-        # so that FastAPI can terminate it properly
-        return None
+        return response
 
     async def get_logout_response(self, response: Response) -> Any:
         response.set_cookie(
@@ -59,7 +57,7 @@ class CookieTransport(Transport):
 
     @staticmethod
     def get_openapi_login_responses_success() -> OpenAPIResponseType:
-        return {status.HTTP_200_OK: {"model": None}}
+        return {status.HTTP_204_NO_CONTENT: {"model": None}}
 
     @staticmethod
     def get_openapi_logout_responses_success() -> OpenAPIResponseType:
diff --git a/tests/test_authentication_transport_cookie.py b/tests/test_authentication_transport_cookie.py
index ca99f9ca..7c90808f 100644
--- a/tests/test_authentication_transport_cookie.py
+++ b/tests/test_authentication_transport_cookie.py
@@ -38,10 +38,10 @@ async def test_get_login_response(cookie_transport: CookieTransport):
     secure = cookie_transport.cookie_secure
     httponly = cookie_transport.cookie_httponly
 
-    response = Response()
-    login_response = await cookie_transport.get_login_response("TOKEN", response)
+    response = await cookie_transport.get_login_response("TOKEN", Response())
 
-    assert login_response is None
+    assert isinstance(response, Response)
+    assert response.status_code == status.HTTP_204_NO_CONTENT
 
     cookies = [header for header in response.raw_headers if header[0] == b"set-cookie"]
     assert len(cookies) == 1
@@ -96,7 +96,7 @@ async def test_get_logout_response(cookie_transport: CookieTransport):
 @pytest.mark.openapi
 def test_get_openapi_login_responses_success(cookie_transport: CookieTransport):
     assert cookie_transport.get_openapi_login_responses_success() == {
-        status.HTTP_200_OK: {"model": None}
+        status.HTTP_204_NO_CONTENT: {"model": None}
     }