diff --git a/.changeset/long-swans-boil.md b/.changeset/long-swans-boil.md
new file mode 100644
index 00000000000..74d4467d355
--- /dev/null
+++ b/.changeset/long-swans-boil.md
@@ -0,0 +1,5 @@
+---
+"@primer/react": minor
+---
+
+Remove sxProp from SelectPanel
diff --git a/packages/react/src/SelectPanel/SelectPanel.tsx b/packages/react/src/SelectPanel/SelectPanel.tsx
index 39d41d26094..9eab00b3075 100644
--- a/packages/react/src/SelectPanel/SelectPanel.tsx
+++ b/packages/react/src/SelectPanel/SelectPanel.tsx
@@ -100,7 +100,6 @@ export function SelectPanel({
   footer,
   textInputProps,
   overlayProps,
-  sx,
   className,
   ...listProps
 }: SelectPanelProps): JSX.Element {
@@ -265,7 +264,7 @@ export function SelectPanel({
             inputRef={inputRef}
             // inheriting height and maxHeight ensures that the FilteredActionList is never taller
             // than the Overlay (which would break scrolling the items)
-            sx={enabled ? sx : {...sx, height: 'inherit', maxHeight: 'inherit'}}
+            sx={enabled ? undefined : {height: 'inherit', maxHeight: 'inherit'}}
             className={enabled ? clsx(className, classes.FilteredActionList) : className}
           />
           {footer && (