diff --git a/lib/src/colorSchemes.ts b/lib/src/colorSchemes.ts
index a86dd5e..0d8d8a2 100644
--- a/lib/src/colorSchemes.ts
+++ b/lib/src/colorSchemes.ts
@@ -1,6 +1,6 @@
 import { colord, extend } from 'colord'
 import namesPlugin from 'colord/plugins/names'
-import { blue, green, red, grey, orange } from '@mui/material/colors'
+import { blue, green, red, orange } from '@mui/material/colors'
 import { transform } from './util'
 
 extend([namesPlugin])