Incorrect iCloud account for app updates

I am having issues updating my apps through the App Store. My app store has my correct iCloud account linked to it however, every time I attempt to update an app a pop up message appears stating "Sign in to the App Store" and has the incorrect iCloud account therefore I am not able to complete the process because I do not have the password for the account that shows up. Any idea why this is happening and how I can change it so that my actual iCloud account shows up?