Read the statement by Michael Teeuw here.
Update Font Awesome to version 5?
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 Are there any plans to update Font Awesome to version 5? 
 I see thatvendor/package.jsonnow referencesfont-awesome: ^4.7.0, though it seems that@fortawesome/fontawesome-free@5.3.1is the latest version.I see a PR (https://github.com/MichMich/MagicMirror/issues/1344) from July 2018 that was closed due to inactivity. I understand that it is not an in-place upgrade for backward compatibility. Thanks. 
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 I imported FA via the custom.css file. Maybe this will work for you? @import url("https://use.fontawesome.com/releases/v5.3.1/css/all.css");
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 @oe2atn 
 Thank you, for me it’s work fine.
 I only changed v5.3.1 to v5.5.0, i’ts the current version.
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 following this thread 
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 I have added the FA rule above as follows in my custom.css file: body { @import url("https://use.fontawesome.com/releases/v5.6.3/css/all.css"); }Unfortunatly, this does not work, the Fontawesome 5 icons are still not displayed. Can someone help me? 
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 @zwirbel move it above the body {line
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 @cyberphox Perfect, that did it, thank you for your help (and I should know this…) 
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 i think @yawns deserves the credit…LOL 


