diff --git a/libwnck-3.36.0.tar.xz b/libwnck-3.36.0.tar.xz
deleted file mode 100644
index da6dc31..0000000
--- a/libwnck-3.36.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:bc508150b3ed5d22354b0e6774ad4eee465381ebc0ace45eb0e2d3a4186c925f
-size 447760
diff --git a/libwnck-40.0.tar.xz b/libwnck-40.0.tar.xz
new file mode 100644
index 0000000..d0dbb6b
--- /dev/null
+++ b/libwnck-40.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:30cb79a839f90cd66f3e202f3f98cb5166fa0cd9b92eb571ad9c470a43021d83
+size 455216
diff --git a/libwnck.changes b/libwnck.changes
index c8b0798..4729a69 100644
--- a/libwnck.changes
+++ b/libwnck.changes
@@ -1,3 +1,19 @@
+-------------------------------------------------------------------
+Fri May 14 14:02:29 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Update to version 40.0:
+  + Features:
+    - Use new GNOME versioning scheme (not strictly the same
+      schedule though).
+    - pager: Add API to disable scrolling.
+    - tasklist: Reworked the size management to use internal
+      WnckButton and GTK's preferred size.
+    - Add WnckHandle (private for now).
+  + Fixes:
+    - Do not leak pango font description.
+    - tasklist: Use geometries to respect HiDPI settings.
+  + Updated translations.
+
 -------------------------------------------------------------------
 Wed Mar 25 21:56:23 UTC 2020 - Bjørn Lie <bjorn.lie@gmail.com>
 
diff --git a/libwnck.spec b/libwnck.spec
index c1d60eb..c69db8a 100644
--- a/libwnck.spec
+++ b/libwnck.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libwnck
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# 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:           libwnck
-Version:        3.36.0
+Version:        40.0
 Release:        0
 Summary:        Window Navigator Construction Kit (Library Package)
 License:        LGPL-2.1-or-later
 Group:          Development/Libraries/GNOME
 URL:            https://git.gnome.org/browse/libwnck
-Source0:        https://download.gnome.org/sources/libwnck/3.36/%{name}-%{version}.tar.xz
+Source0:        https://download.gnome.org/sources/libwnck/40/%{name}-%{version}.tar.xz
 Source98:       baselibs.conf
 Source99:       %{name}-rpmlintrc