diff --git a/apps/pigment-css-next-app/next.config.js b/apps/pigment-css-next-app/next.config.js
index 6aeca66f..e81bbb6e 100644
--- a/apps/pigment-css-next-app/next.config.js
+++ b/apps/pigment-css-next-app/next.config.js
@@ -2,8 +2,6 @@
 // eslint-ignore-next-line import/no-unresolved
 const { withPigment } = require('@pigment-css/nextjs-plugin');
 const { experimental_extendTheme: extendTheme } = require('@mui/material/styles');
-// eslint-ignore-next-line @typescript-eslint/naming-convention
-const { styledEngineMockup } = require('@pigment-css/react/internal');
 
 /**
  * @typedef {import('@pigment-css/nextjs-plugin').PigmentOptions} PigmentOptions