diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 5cdb843f07..3f7c8c90bb 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -4056,6 +4056,7 @@ after_process_all_updates (void)
  * Calls gdk_window_process_updates() for all windows (see #GdkWindow)
  * in the application.
  *
+ * Deprecated: 3.22
  **/
 void
 gdk_window_process_all_updates (void)
@@ -4203,6 +4204,7 @@ gdk_window_process_updates_with_mode (GdkWindow     *window,
  * case, where GDK delivers them in an idle handler). Occasionally
  * this is useful to produce nicer scrolling behavior, for example.
  *
+ * Deprecated: 3.22
  **/
 void
 gdk_window_process_updates (GdkWindow *window,
diff --git a/gdk/gdkwindow.h b/gdk/gdkwindow.h
index aa57e13f04..3614a76b9f 100644
--- a/gdk/gdkwindow.h
+++ b/gdk/gdkwindow.h
@@ -1054,9 +1054,9 @@ void       gdk_window_freeze_toplevel_updates_libgtk_only (GdkWindow *window);
 GDK_DEPRECATED_IN_3_16
 void       gdk_window_thaw_toplevel_updates_libgtk_only   (GdkWindow *window);
 
-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_3_22
 void       gdk_window_process_all_updates (void);
-GDK_AVAILABLE_IN_ALL
+GDK_DEPRECATED_IN_3_22
 void       gdk_window_process_updates     (GdkWindow    *window,
 					   gboolean      update_children);