diff --git a/html/header.html b/html/header.html
index 8da0f63..5441650 100644
--- a/html/header.html
+++ b/html/header.html
@@ -7,7 +7,7 @@
     <meta name="robots" content="nosnippet">
 
     <!-- this website uses watercss: https://watercss.kognise.dev/ -->
-    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/water.css@2/out/water.css">
+    <link rel="stylesheet" href="/html/water.css">
 
     <style>
         a[href^="//"]::after,