Why TypeScript does not get the Type of error callback in Express

I have this piece of code in Express TypeScript

import { Router } from "express";

export const skillsRouter = Router()

skillsRouter.use((req, res, next) => {}) // Typescript knows the types of req, res and next
skillsRouter.use((err, req, res, next) => {}) // TypeScript throws implicit any error 

skillsRouter.get("/", (req, res) => {
    res.status(200).json("ok")
}) // Typescript again knows the types of req and res

Why doesn't it know the types of the Error handler params

Also I'm aware that this will fix it

skillsRouter.use(((err, req, res, next) => {}) as ErrorRequestHandler)

or this

skillsRouter.use((err: unknown, req: Request, res: Response, next: NextFunction) => {})