diff --git a/assets/tailwind.config.js b/assets/tailwind.config.js
index 126bd035..20634902 100644
--- a/assets/tailwind.config.js
+++ b/assets/tailwind.config.js
@@ -3,6 +3,7 @@ const colors = require('tailwindcss/colors')
 module.exports = {
   purge: [
     '../lib/**/*.ex',
+    '../lib/**/*.heex',
     '../lib/**/*.leex',
     '../lib/**/*.eex',
     './js/**/*.js'