diff --git a/docs/TODOLIST.md b/docs/TODOLIST.md
index 82fb87f..2662efe 100644
--- a/docs/TODOLIST.md
+++ b/docs/TODOLIST.md
@@ -10,7 +10,6 @@
 * Terminal: https://github.com/hrngultekin/pyqtermwidget5 looks good enough
 * Terminal: https://github.com/lxqt/qtermwidget looks support pyqt5 too. ;)
 * CHMViewer: develop a chm viewer in emacs.
-* Maybe i can study key-process from https://github.com/tarsius/keycast ?
 * Support HiDPI? I haven't HiDPI screen.
 * Press F11 not work with EAF
 * Make EAF support bookmark.