Combine external CSS

There are 9 CSS files served from hb-minify-juc1ugur1qwqqqo4.stackpathdns.com. They should be combined into as few files as possible.
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/0d19e65b-cc3f-484f-b565-0c761bd5fc99.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/19e5c9d1-ce61-4a6f-a203-aa64becf2d0e.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/2eab2250-0070-421e-9044-568b30d7ac71.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/5b71c41f-a059-43ab-8c6f-159886d4da7a.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/7a7eac1a-ce42-48e3-90f8-9483d905225a.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/a43d2dff-88d8-4976-ba1f-73dcbc8639cf.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/ab50b52c-d3fb-4e10-9158-8f66dd21cf99.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/b091156a-8f08-468f-aa81-a80d3ce9cd23.css
https://hb-minify-juc1ugur1qwqqqo4.stackpathdns ... melo.nl/e93f7f1d-772d-4ded-a89e-d153a6e04ffa.css

Can I solve this?