diff --git a/src/popover/Popover.tsx b/src/popover/Popover.tsx
index 1f1c99f5..cdbc721f 100644
--- a/src/popover/Popover.tsx
+++ b/src/popover/Popover.tsx
@@ -18,7 +18,7 @@ export interface PopoverProps extends HTMLAttributes<HTMLElement> {
    */
   shouldCloseOnBlur?: boolean;
   children: ReactNode;
-  placement?: PlacementAxis;
+  placement?: PlacementAxis | null;
 }
 
 function Popover(props: PopoverProps, ref: DOMRef<HTMLDivElement>) {