diff --git a/packages/mui-material/src/Accordion/Accordion.js b/packages/mui-material/src/Accordion/Accordion.js
index 3adf939dcd5cdd..0b7fd2e9d41fb1 100644
--- a/packages/mui-material/src/Accordion/Accordion.js
+++ b/packages/mui-material/src/Accordion/Accordion.js
@@ -180,8 +180,6 @@ const Accordion = React.forwardRef(function Accordion(inProps, ref) {
     ownerState,
   });
 
-  delete transitionProps.ownerState;
-
   return (
     <AccordionRoot
       className={clsx(classes.root, className)}
diff --git a/packages/mui-material/src/Collapse/Collapse.js b/packages/mui-material/src/Collapse/Collapse.js
index 42e206e96137b8..27bc19224a42f5 100644
--- a/packages/mui-material/src/Collapse/Collapse.js
+++ b/packages/mui-material/src/Collapse/Collapse.js
@@ -287,9 +287,11 @@ const Collapse = React.forwardRef(function Collapse(inProps, ref) {
             [isHorizontal ? 'minWidth' : 'minHeight']: collapsedSize,
             ...style,
           }}
-          ownerState={{ ...ownerState, state }}
           ref={handleRef}
           {...childProps}
+          // `ownerState` is set after `childProps` to override any existing `ownerState` property in `childProps`
+          // that might have been forwarded from the Transition component.
+          ownerState={{ ...ownerState, state }}
         >
           <CollapseWrapper
             ownerState={{ ...ownerState, state }}