diff --git a/_config.icarus.yml b/_config.icarus.yml
index 29c6f78..ac4d2c0 100644
--- a/_config.icarus.yml
+++ b/_config.icarus.yml
@@ -335,8 +335,8 @@ plugins:
 # https://ppoffice.github.io/hexo-theme-icarus/Configuration/Theme/speed-up-your-site-with-custom-cdn/
 providers:
     # Name or URL template of the JavaScript and/or stylesheet CDN provider
-    cdn: [cdnjs]https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/${package}/${version}/${filename}
+    cdn: '[cdnjs]https://lf26-cdn-tos.bytecdntp.com/cdn/expire-1-M/${package}/${version}/${filename}'
     # Name or URL template of the webfont CDN provider
     fontcdn: loli
     # Name or URL of the fontawesome icon font CDN provider
-    iconcdn: https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/font-awesome/5.15.2/css/all.css
+    iconcdn: 'https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/font-awesome/5.15.2/css/all.css'