If you haven't yet made the change to go to SSL for every page of your website, Google's letting you know that you're running out of time:
Google Sets Deadline for HTTPS and Warns Publishers to Upgrade Soon (searchenginejournal.com)
Google has announced a deadline of July 2018 as the date for when Chrome will begin explicitly warning users if a site is insecure. Over 50% of Internet browsers worldwide are Chrome, meaning this change may have a significant impact on web publishers. A prominent warning may affect how secure users feel and may cause some visitors to leave a site, which will negatively impacting a sites bounce rate, advertising impressions, affiliate clicks and eCommerce sales.
After that, people using Chrome as their web browser will see an even more prominent note that the website they're viewing is not secure. This will cause your website visitors to lose trust in your website and there's a good percentage of them that will leave, thinking the website is infected or not trustworthy.
Your best bet is to make this switch now. It's not a lot of work and it can be done in a few days. You just need an SSL certificate and then some code set up to force every page to be shown securely (using the HTTPS protocol).
This was something we promoted heavily last year. All websites we launch (for a while now) have every page secure. It used to be just banking or e-commerce websites that needed to do this in the past but now it's something for every website.
Since a secure website is something that improves the user experience, it has been said that Google gives these websites a boost in rankings. That's not officially confirmed but we do know that people trust these websites more and Google does want to provide results where the user experience is very good. There's no reason not to do it.
Contact Webstix for help with making sure all pages of your website are secure.