diff --git a/gnome-chess-3.38.1.tar.xz b/gnome-chess-3.38.1.tar.xz
deleted file mode 100644
index 95afa7c..0000000
--- a/gnome-chess-3.38.1.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1470f037c0dffe0285c121f7b6655e1245761f99a9974ab3c04dee5d6e89f5ae
-size 747900
diff --git a/gnome-chess-40.0.tar.xz b/gnome-chess-40.0.tar.xz
new file mode 100644
index 0000000..1d02da0
--- /dev/null
+++ b/gnome-chess-40.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25bff8809eb557804ac01e97d790e3ce9d77e601795ca7e526896637a2779630
+size 744704
diff --git a/gnome-chess.changes b/gnome-chess.changes
index 310e514..10b5dac 100644
--- a/gnome-chess.changes
+++ b/gnome-chess.changes
@@ -1,3 +1,30 @@
+-------------------------------------------------------------------
+Tue Mar 23 09:34:10 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 40.0:
+  + Update icon in user help.
+  + Updated translations
+
+-------------------------------------------------------------------
+Mon Jan 11 13:58:14 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 40.alpha:
+  + Port to GTK 4.
+  + Major refactoring of portions of the UI layer. Split engine
+    code into separate layer.
+  + Rework promotion type selector to avoid GTK warnings.
+  + Hide timers in untimed games.
+  + Custom PGN tags are now prefixed with X-GNOME.
+  + Promotion type selector now fits screen in narrow mode.
+  + Use info bar, not header bar subtitle, to display extra status
+    messages.
+  + Reduce length of Oops! message in header bar on engine error.
+  + Improve message when game ends in stalemate.
+  + Move New Game from header bar to primary menu to save space.
+  + Rename Save to Save As, and display a separate Save action.
+- Replace pkgconfig(gtk+-3.0) BuildRequires with pkgconfig(gtk4):
+  Follow upstreams port to GTK 4.
+
 -------------------------------------------------------------------
 Mon Dec  7 20:49:38 UTC 2020 - Bjørn Lie <bjorn.lie@gmail.com>
 
diff --git a/gnome-chess.spec b/gnome-chess.spec
index 50613a8..091646f 100644
--- a/gnome-chess.spec
+++ b/gnome-chess.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gnome-chess
 #
-# Copyright (c) 2020 SUSE LLC
+# Copyright (c) 2021 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,13 +17,13 @@
 
 
 Name:           gnome-chess
-Version:        3.38.1
+Version:        40.0
 Release:        0
 Summary:        Chess Game for GNOME
 License:        GPL-3.0-or-later
 Group:          Amusements/Games/Board/Chess
 URL:            https://wiki.gnome.org/Apps/Chess
-Source0:        https://download.gnome.org/sources/gnome-chess/3.38/%{name}-%{version}.tar.xz
+Source0:        https://download.gnome.org/sources/gnome-chess/40/%{name}-%{version}.tar.xz
 
 BuildRequires:  fdupes
 # ITS Tool is needed because there are some XML formats that Gettext does not handle, at least not now (3.27.2).
@@ -35,7 +35,7 @@ BuildRequires:  pkgconfig(gio-2.0) >= 2.44.0
 BuildRequires:  pkgconfig(gio-unix-2.0) >= 2.44.0
 BuildRequires:  pkgconfig(glib-2.0) >= 2.44.0
 BuildRequires:  pkgconfig(gmodule-2.0) >= 2.44.0
-BuildRequires:  pkgconfig(gtk+-3.0) >= 3.19.0
+BuildRequires:  pkgconfig(gtk4) >= 3.19.0
 BuildRequires:  pkgconfig(librsvg-2.0) >= 2.32.0
 Requires:       chess_backend
 
@@ -64,7 +64,6 @@ in a window.
 %doc NEWS
 %doc %{_datadir}/help/C/%{name}/
 %{_datadir}/icons/hicolor/
-%{_datadir}/%{name}/
 %{_bindir}/%{name}
 %dir %{_datadir}/metainfo
 %{_datadir}/applications/org.gnome.Chess.desktop