diff --git a/packages/mui-material/src/utils/memoTheme.ts b/packages/mui-material/src/utils/memoTheme.ts
index 2b899413ca6c36..e9fd1dd31f49bf 100644
--- a/packages/mui-material/src/utils/memoTheme.ts
+++ b/packages/mui-material/src/utils/memoTheme.ts
@@ -1,4 +1,4 @@
-import { CSSInterpolation } from '@mui/styled-engine';
+import { CSSInterpolation } from '@mui/system';
 import { Theme } from '../styles/createTheme';
 
 type ThemeStyleFunction = (props: { theme: Theme }) => CSSInterpolation;