diff --git a/packages/react-aria-components/src/FileTrigger.tsx b/packages/react-aria-components/src/FileTrigger.tsx
index 26e3f773d36..e096482d35b 100644
--- a/packages/react-aria-components/src/FileTrigger.tsx
+++ b/packages/react-aria-components/src/FileTrigger.tsx
@@ -19,7 +19,7 @@ export interface FileTriggerProps {
   /**
    * Specifies what mime type of files are allowed.
    */
-  acceptedFileTypes?: Array<string>,
+  acceptedFileTypes?: ReadonlyArray<string>,
   /**
    * Whether multiple files can be selected.
    */