URL Issues after installing for 5 images

Hi,

This is not necessarily a generatepress issue. So if you could point me in another direction, that would be fine.

I moved:

https://www.yellowfrogmedia.com/

to

https://www.solvusengineering.com/

I did everything according to my documentation and I'm good except I have 5 URL's linking to images that aren't secure. This is what 'Why No Green Padlock' shows:

Total number of items: 58
Number of insecure items: 5
Insecure URL: http://www.solvusengineering.com/wp-content/uploads/2017/04/yfm-logo.png
Found in: https://www.solvusengineering.com/

Insecure URL: http://www.solvusengineering.com/wp-content/uploads/2017/04/WebDesignButton.png
Found in: https://www.solvusengineering.com/

Insecure URL: http://www.solvusengineering.com/wp-content/uploads/2017/04/SEO.png
Found in: https://www.solvusengineering.com/

Insecure URL: http://www.solvusengineering.com/wp-content/uploads/2017/04/ContactUs.png
Found in: https://www.solvusengineering.com/

Insecure URL: http://www.solvusengineering.com/wp-content/uploads/2017/04/Blog.png
Found in: https://www.solvusengineering.com/

I must have missed something and don't know where to look. Any suggestions are truly appreciated.

Thanks,

Dave ~