diff --git a/changelog.d/fix-demo-source.fixed.md b/changelog.d/fix-demo-source.fixed.md
new file mode 100644
index 0000000..74917fe
--- /dev/null
+++ b/changelog.d/fix-demo-source.fixed.md
@@ -0,0 +1 @@
+Fix demo site styling on Vercel by scanning source components for Tailwind classes
diff --git a/demo/demo.css b/demo/demo.css
index 153f872..f2db4a2 100644
--- a/demo/demo.css
+++ b/demo/demo.css
@@ -1,2 +1,5 @@
 @import "tailwindcss";
 @import "../src/theme/tokens.css";
+
+/* Scan source components so Tailwind generates utility classes for them */
+@source "../src/**/*.{ts,tsx}";