Your 'old' photo is most likely cached by your web browser.
This will clear eventually.
You can reload the profile web page(s) and bypass the cache.files.
- Hold down the Shift key and left-click the Reload/Refresh button (rounded arrow top left in your web browser )
- Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
- if you're using a Mac: Press "Command + Shift + R"
If the above does not work for you, then you can speed up the process by clearing the browser cache.
Click/Press HERE to find out how