diff --git a/demo/config/config.exs b/demo/config/config.exs
index 0794bbbc..3e2056a2 100644
--- a/demo/config/config.exs
+++ b/demo/config/config.exs
@@ -52,7 +52,7 @@ config :esbuild,
   ]
 
 config :tailwind,
-  version: "3.4.17",
+  version: "4.0.3",
   default: [
     args: ~w(
       --config=assets/tailwind.config.js