diff --git a/proposals/4157-future-widget-api.md b/proposals/4157-future-widget-api.md
index 7c4d31b45..4f1cb36c2 100644
--- a/proposals/4157-future-widget-api.md
+++ b/proposals/4157-future-widget-api.md
@@ -23,8 +23,7 @@ as follows:
     type: string;
     content: unknown;
     room_id?: string;
-    future_timeout?: number; // new field
-    parent_future_id?: string; // new field
+    delay?: number; // new field
 }
 ```
 
@@ -34,37 +33,44 @@ and the `"send_event"` response:
 {
     room_id: string;
     event_id?: string; // now optional
-    parent_future_id?: string; // new field
+    delay_id?: string; // new field
 }
 ```
 
 to provide the same properties needed for [MSC4140](https://github.com/matrix-org/matrix-spec-proposals/pull/4140).
 The client is responsible to check
-for the field `future_timeout` or `parent_future_id` of the widget action and send a `/send` or `/send_future` http request
-if one of them is present.
-
-Additionally the response is extended with the tokens and the `parent_future_id`.
+for the field `delay` of the widget action and send the correct http request
+if one of it is present.
 
 All other details about the future concept can be found in [MSC4140](https://github.com/matrix-org/matrix-spec-proposals/pull/4140)
 so here we intentionally don't mention any of the details about futures.
 
-### Sending `update_future` actions
+### Sending `update_delayed_event` actions
 
 ```jsonc
 {
     "direction": "fromWidget",
-    "action":"update_future",
+    "action":"update_delayed_event",
     "data":{
-        "future_id":,
+        "delay_id": string,
         "action":"cancel"|"send"|"refresh"
     }
 }
 ```
 
-response
+The response is empty on success or otherwise a widget error response.
 
-```jsonc
-{}
-```
+### Capabilities
+
+Two new capabilities will be introduces:
+
+- `m.send.delay_events`\
+  allows to send delayed events by using the optional `delay` property in a `fromWidget send_event` widget action.
+- `m.update_delayed_event`\
+  allows to update delayed events using the `fromWidget update_delayed_event` widget action.
+
+## Unstable prefix
 
-or an error response if an error occurred.
\ No newline at end of file
+- `update_delayed_event` -> `org.matrix.msc4157.update_delayed_event`
+- `m.send.delayed_event` -> `org.matrix.msc4157.send.delayed_event`
+- `m.update_delayed_event` -> `org.matrix.msc4157.update.delayed_event`