invalid id or password for app store purchase
I got notification for update for few of the app which I had purchased from App store but while doing update it asked me for Password so I entered my password but it shows that it is invalid password so I changed my password than after also it shows invalid id or password and it dose not allow to update the app from app store,
What should I do to get rid from this problem.
iPhone 5s, iOS 10.3.2