diff --git a/.planning/phases/21-chat-foundation/21-UI-SPEC.md b/.planning/phases/21-chat-foundation/21-UI-SPEC.md
index 0e9a48a5..cad803ae 100644
--- a/.planning/phases/21-chat-foundation/21-UI-SPEC.md
+++ b/.planning/phases/21-chat-foundation/21-UI-SPEC.md
@@ -255,7 +255,7 @@ Components to build in Phase 21:
 | Delete conversation dialog title | "Delete conversation?" | shadcn Dialog title |
 | Delete conversation dialog body | "This conversation and all its messages will be permanently deleted." | Confirms scope |
 | Delete confirmation button | "Delete" | `variant="destructive"` |
-| Delete cancel button | "Cancel" | `variant="outline"` |
+| Delete cancel button | "Keep conversation" | `variant="outline"` |
 | Archive action label | "Archive" | Dropdown menu item |
 | Pin action label | "Pin" / "Unpin" | Toggle based on pinned state |
 | Rename action label | "Rename" | Dropdown menu item |