CSS not being minified from gulp build

My stylesheet is not being detected as being minified after running gulp build command. When inspecting the stylesheet it appears that the sourceMappingURL=data:application information is still at the bottom. Should this be showing up in the production version of the stylesheet? Is there something I am not doing to have it removed?

Thanks,

What does the output say when you run gulp build? Because AFAIK, that’s never been a command in the gulp file… it’s always been gulp --production

Actually I now realize the issue was me running gulp production without the --. Disregard and thanks for the response