diff --git a/src/api/invitations.py b/src/api/invitations.py
index d09bdf4..86bbcd5 100644
--- a/src/api/invitations.py
+++ b/src/api/invitations.py
@@ -237,7 +237,7 @@ async def accept_invitation(invitation_id: PydanticObjectId, user: CurrentUserDe
     )
     notification = await notification.create()
 
-    return Response(status.HTTP_204_NO_CONTENT)
+    return Response(status_code=status.HTTP_204_NO_CONTENT)
 
 
 @invitations_router.post("{invitation_id}/decline")