diff --git a/src/_includes/layout.njk b/src/_includes/layout.njk
index f68d1ff..23d076a 100644
--- a/src/_includes/layout.njk
+++ b/src/_includes/layout.njk
@@ -48,8 +48,8 @@
         <link rel="preconnect" href="https://fonts.googleapis.com">
         <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
         <link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,100..700;1,100..700&family=Red+Hat+Mono:ital,wght@0,300..700;1,300..700&display=swap" rel="stylesheet">
-        <link rel="stylesheet" href="/css/style.css">
-        <link rel="stylesheet" href="/css/prism-tomorrow.css">
+        <link rel="stylesheet" href="/css/style.css?v={{ buildTime }}">
+        <link rel="stylesheet" href="/css/prism-tomorrow.css?v={{ buildTime }}">
         <link rel="canonical" href="{{ site.url }}{{ page.url }}">
     </head>
     <body class="antialiased">
