diff --git a/src/app/main.tsx b/src/app/main.tsx
index 2d8615c..feae822 100644
--- a/src/app/main.tsx
+++ b/src/app/main.tsx
@@ -1,5 +1,6 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
+import { StyledEngineProvider } from '@mui/material/styles'
 import App from './App'
 
 // I don't consider providing a disabled button to a Tooltip an error.
@@ -20,6 +21,8 @@ if ('serviceWorker' in navigator) {
 
 createRoot(document.getElementById('root')!).render(
   // <StrictMode>
-    <App />
+    <StyledEngineProvider injectFirst>
+      <App />
+    </StyledEngineProvider>
   // </StrictMode>,
 )