diff --git a/sass/main.scss b/sass/main.scss
index ee84e11..4c41876 100644
--- a/sass/main.scss
+++ b/sass/main.scss
@@ -10,7 +10,7 @@
     /* Copyright 2014 - 2023 Adobe (http://www.adobe.com/), with Reserved Font Name ‘Source’.adobe.com/). Licensed under the SIL Open Font License, Version 1.1. More information available at: http://scripts.sil.org/OFL */
     font-family: 'Source Serif';
     src: local('Source Serif'),
-        url('fonts/SourceSerif4Variable-Roman.otf.woff2') format("woff2");
+        url('fonts/SourceSerif4Variable-Roman.ttf.woff2') format("woff2");
     font-display: swap;
 }
 
@@ -18,7 +18,7 @@
     /* Copyright 2019 - Present, Microsoft Corporation, with Reserved Font Name 'Cascadia Code'. Licensed under the SIL Open Font License, Version 1.1. More information available at: http://scripts.sil.org/OFL */
     font-family: 'Cascadia Code';
     src: local('Cascadia Code'),
-        url('fonts/CascadiaCode.woff2') format("woff2");
+        url('fonts/CascadiaCode-SemiLight.woff2') format("woff2");
     font-display: swap;
 }
 
diff --git a/static/fonts/CascadiaCode-SemiLight.woff2 b/static/fonts/CascadiaCode-SemiLight.woff2
new file mode 100644
index 0000000..fb0f9de
Binary files /dev/null and b/static/fonts/CascadiaCode-SemiLight.woff2 differ
diff --git a/static/fonts/CascadiaCode.woff2 b/static/fonts/CascadiaCode.woff2
deleted file mode 100644
index 8865499..0000000
Binary files a/static/fonts/CascadiaCode.woff2 and /dev/null differ
diff --git a/static/fonts/SourceSerif4Variable-Roman.otf.woff2 b/static/fonts/SourceSerif4Variable-Roman.otf.woff2
deleted file mode 100644
index b5304dd..0000000
Binary files a/static/fonts/SourceSerif4Variable-Roman.otf.woff2 and /dev/null differ
diff --git a/static/fonts/SourceSerif4Variable-Roman.ttf.woff2 b/static/fonts/SourceSerif4Variable-Roman.ttf.woff2
new file mode 100644
index 0000000..cca344b
Binary files /dev/null and b/static/fonts/SourceSerif4Variable-Roman.ttf.woff2 differ