diff --git a/packages/react-scripts/template/public/index.html b/packages/react-scripts/template/public/index.html
index 7bee027101ebc858da5cdcf909733043fcd64f86..ed0ebafa1b7c3057e5fc3eddbdf9e4c2c46de805 100644
--- a/packages/react-scripts/template/public/index.html
+++ b/packages/react-scripts/template/public/index.html
@@ -1,4 +1,4 @@
-<!doctype html>
+<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">