diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index 999139500..a5ce43382 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -1032,11 +1032,11 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
 void MainWindow::not_GA_warning_message ()
 {
   // MessageBox::critical_message (this,
-  //                               "This is a pre-release version of WSJT-X 2.3.0 made\n"
+  //                               "This is a pre-release version of WSJT-X 2.4.0 made\n"
   //                               "available for testing purposes.  By design it will\n"
-  //                               "be nonfunctional after 0000 UTC on Jan 19, 2021.");
+  //                               "be nonfunctional after May 25, 2021.");
   // auto now = QDateTime::currentDateTimeUtc ();
-  // if (now >= QDateTime {{2021, 1, 19}, {0, 0}, Qt::UTC}) {
+  // if (now >= QDateTime {{2021, 5, 25}, {23, 59, 59, 999}, Qt::UTC}) {
   //   Q_EMIT finished ();
   // }
 }