diff --git a/packages/mui-material/src/Popover/Popover.spec.tsx b/packages/mui-material/src/Popover/Popover.spec.tsx
index e771e801c80d83..823d9bb661f5df 100644
--- a/packages/mui-material/src/Popover/Popover.spec.tsx
+++ b/packages/mui-material/src/Popover/Popover.spec.tsx
@@ -16,3 +16,12 @@ function Test() {
     </React.Fragment>
   );
 }
+
+<Popover
+  open
+  slotProps={{
+    paper: {
+      sx: (theme) => ({ backgroundColor: theme.palette.primary.main }),
+    },
+  }}
+/>;
diff --git a/packages/mui-material/src/utils/types.ts b/packages/mui-material/src/utils/types.ts
index 01d4a1be52612c..caa6f2b606339b 100644
--- a/packages/mui-material/src/utils/types.ts
+++ b/packages/mui-material/src/utils/types.ts
@@ -1,5 +1,6 @@
 import { SxProps } from '@mui/system';
 import { SlotComponentProps } from '@mui/utils';
+import { Theme } from '../styles';
 
 export type {
   EventHandlers,
@@ -10,7 +11,7 @@ export type {
 
 export type SlotCommonProps = {
   component?: React.ElementType;
-  sx?: SxProps;
+  sx?: SxProps<Theme>;
 };
 
 export type SlotProps<