diff --git a/mutter-40.0.tar.xz b/mutter-40.0.tar.xz
new file mode 100644
index 0000000..3c179fa
--- /dev/null
+++ b/mutter-40.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7a71b312e5a667c5374895188a506a3f6b671768bcb362b68efdc562773d198e
+size 2678364
diff --git a/mutter-40.1.tar.xz b/mutter-40.1.tar.xz
deleted file mode 100644
index 6607ea7..0000000
--- a/mutter-40.1.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a65f3272961133829687d4107267e4e19290e6d86e7807fad87eab0831c1e0c0
-size 2680816
diff --git a/mutter-disable-cvt-s390x.patch b/mutter-disable-cvt-s390x.patch
index 504dcb8..f9ebaf0 100644
--- a/mutter-disable-cvt-s390x.patch
+++ b/mutter-disable-cvt-s390x.patch
@@ -1,8 +1,8 @@
-Index: mutter-40.1/src/meson.build
+Index: mutter-3.34.1+27/src/meson.build
 ===================================================================
---- mutter-40.1.orig/src/meson.build
-+++ mutter-40.1/src/meson.build
-@@ -824,6 +824,7 @@ if have_profiler
+--- mutter-3.34.1+27.orig/src/meson.build	2019-10-21 15:03:25.000000000 +0200
++++ mutter-3.34.1+27/src/meson.build	2019-12-02 13:30:20.320685900 +0100
+@@ -722,6 +722,7 @@
  endif
  
  if have_native_backend
@@ -10,7 +10,7 @@ Index: mutter-40.1/src/meson.build
    cvt = find_program('cvt')
  
    gen_default_modes = find_program('backends/native/gen-default-modes.py')
-@@ -831,6 +832,9 @@ if have_native_backend
+@@ -729,6 +730,9 @@
      output: 'meta-default-modes.h',
      command: [gen_default_modes, '@OUTPUT@']
    )
@@ -19,11 +19,11 @@ Index: mutter-40.1/src/meson.build
 +  endif
    mutter_built_sources += default_modes_h
  
-   dbus_login1_built_sources = gnome.gdbus_codegen('meta-dbus-login1',
-Index: mutter-40.1/src/backends/native/meta-default-modes.h
+   gdbus_codegen = find_program('gdbus-codegen')
+Index: mutter-3.34.1+27/src/backends/native/meta-default-modes.h
 ===================================================================
---- /dev/null
-+++ mutter-40.1/src/backends/native/meta-default-modes.h
+--- /dev/null	1970-01-01 00:00:00.000000000 +0000
++++ mutter-3.34.1+27/src/backends/native/meta-default-modes.h	2019-12-02 13:09:44.832632052 +0100
 @@ -0,0 +1,57 @@
 +/* Generated by gen-default-modes.py */
 +
diff --git a/mutter.changes b/mutter.changes
index 8ef8d7c..09cc251 100644
--- a/mutter.changes
+++ b/mutter.changes
@@ -1,26 +1,3 @@
--------------------------------------------------------------------
-Fri May 14 19:53:33 UTC 2021 - Dominique Leuenberger <dimstar@opensuse.org>
-
-- Update to version 40.1:
-  + Prevent clients from pasting old selection data.
-  + Fix forward_key IM functionality on wayland.
-  + Ensure valid window texture size after viewport changes.
-  + Only update cached paint volumes when necessary.
-  + Only disable KMS modifiers for drivers with known problems.
-  + Fix X11 client resize during moves.
-  + Fix performance drop during night light transition with Nvidia.
-  + kms: Don't add common modes that exceed the max bandwidth.
-  + Create virtual input devices on demand.
-  + Fix wrong night light gamma when leaving power saving.
-  + Fix picking edge case.
-  + Properly tear down things when shutting down.
-  + Fix monitor screencasting with fractional scaling.
-  + Fixed crash.
-  + Plugged memory leak.
-  + Misc. bug fixes and cleanups.
-  + Updated translations.
-- Rebase mutter-disable-cvt-s390x.patch.
-
 -------------------------------------------------------------------
 Fri Apr 23 00:47:06 UTC 2021 - Alynx Zhou <alynx.zhou@suse.com>
 
diff --git a/mutter.spec b/mutter.spec
index 51c24a8..7f46568 100644
--- a/mutter.spec
+++ b/mutter.spec
@@ -23,7 +23,7 @@
 %define api_minor 0
 %define libmutter libmutter-%{api_major}-%{api_minor}
 Name:           mutter
-Version:        40.1
+Version:        40.0
 Release:        0
 Summary:        Window and compositing manager based on Clutter
 License:        GPL-2.0-or-later