Just Follow the simple steps below:
Step 1: Go to the Google Play Store app on your android device menu and tab on it.
Step 2: Now tab on the Settings
Step 3: In Settings tap on the Auto-Update Apps and choose whether you will like to turn off auto-updates on or off.
You can now turn on or off any automatic updates of any apps. This function will work for all the apps that you have on your Android device that you downloaded from Google Play Store.