diff --git a/index.html b/index.html
index 3157d14..c777ac3 100644
--- a/index.html
+++ b/index.html
@@ -52,12 +52,14 @@
         @font-face {
             font-family: 'JetBrains Mono';
             font-style: normal;
+            font-weight: 400;
             src: local(''),
                 url('./font/JetBrainsMono-Regular.woff2') format('woff2');
         }
 
         html,
         body {
+            font-weight: 400;
             min-height: 100%;
             margin: 0;
             padding: 0;