diff --git a/fonts.json b/fonts.json
index eb88a56..c1bf163 100644
--- a/fonts.json
+++ b/fonts.json
@@ -625,7 +625,7 @@
         "name": "Fira Code",
         "rendering": "vector",
         "style": "sans",
-        "zerostyle": "dotted",
+        "zerostyle": "slashed",
         "website": "https://github.com/tonsky/FiraCode",
         "year": 2014
     },
diff --git a/fonts/resources/firacode/firacode-bold.woff b/fonts/resources/firacode/firacode-bold.woff
deleted file mode 100644
index 3e8a8e6..0000000
Binary files a/fonts/resources/firacode/firacode-bold.woff and /dev/null differ
diff --git a/fonts/resources/firacode/firacode-bold.woff2 b/fonts/resources/firacode/firacode-bold.woff2
new file mode 100644
index 0000000..349dc36
Binary files /dev/null and b/fonts/resources/firacode/firacode-bold.woff2 differ
diff --git a/fonts/resources/firacode/firacode.woff b/fonts/resources/firacode/firacode.woff
deleted file mode 100644
index 7233c3f..0000000
Binary files a/fonts/resources/firacode/firacode.woff and /dev/null differ
diff --git a/fonts/resources/firacode/firacode.woff2 b/fonts/resources/firacode/firacode.woff2
new file mode 100644
index 0000000..f8b63fb
Binary files /dev/null and b/fonts/resources/firacode/firacode.woff2 differ
diff --git a/fonts/stylesheets/fonts.less b/fonts/stylesheets/fonts.less
index 0029758..03b644a 100755
--- a/fonts/stylesheets/fonts.less
+++ b/fonts/stylesheets/fonts.less
@@ -148,8 +148,8 @@
 .font ( 'fira', bold, normal, 'fira/fira-bold.woff' );
 .font ( 'fira', normal, normal, 'fira/fira.woff' );
 
-.font ( 'firacode', bold, normal, 'firacode/firacode-bold.woff' );
-.font ( 'firacode', normal, normal, 'firacode/firacode.woff' );
+.font ( 'firacode', bold, normal, 'firacode/firacode-bold.woff2' );
+.font ( 'firacode', normal, normal, 'firacode/firacode.woff2' );
 
 .font ( 'fixedsys', normal, normal, 'fixedsys/fixedsys.woff' );
 
diff --git a/fonts/stylesheets/stylesheet.css b/fonts/stylesheets/stylesheet.css
index 04f9f8f..3e880a1 100755
--- a/fonts/stylesheets/stylesheet.css
+++ b/fonts/stylesheets/stylesheet.css
@@ -626,13 +626,13 @@
   font-family: 'firacode';
   font-weight: bold;
   font-style: normal;
-  src: url('../resources/firacode/firacode-bold.woff');
+  src: url('../resources/firacode/firacode-bold.woff2');
 }
 @font-face {
   font-family: 'firacode';
   font-weight: normal;
   font-style: normal;
-  src: url('../resources/firacode/firacode.woff');
+  src: url('../resources/firacode/firacode.woff2');
 }
 @font-face {
   font-family: 'fixedsys';