diff --git a/index.html b/index.html
index 7e870c0..d90c651 100644
--- a/index.html
+++ b/index.html
@@ -2,7 +2,10 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" href="/favicon.ico" />
+    <link
+      rel="icon"
+      href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>🌡️</text></svg>"
+    />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>dht22</title>
   </head>
diff --git a/public/favicon.ico b/public/favicon.ico
deleted file mode 100644
index 088ff85..0000000
Binary files a/public/favicon.ico and /dev/null differ
