diff --git a/.gitignore b/.gitignore
index 9118754..4d50036 100644
--- a/.gitignore
+++ b/.gitignore
@@ -197,3 +197,4 @@ mutter-2.31.5.tar.bz2
 /mutter-42.0.tar.xz
 /mutter-42.1.tar.xz
 /mutter-42.2.tar.xz
+/mutter-43.alpha.tar.xz
diff --git a/mutter.spec b/mutter.spec
index 13da5e5..154a099 100644
--- a/mutter.spec
+++ b/mutter.spec
@@ -4,12 +4,12 @@
 %global json_glib_version 0.12.0
 %global libinput_version 1.4
 %global pipewire_version 0.3.0
-%global mutter_api_version 10
+%global mutter_api_version 11
 
 %global tarball_version %%(echo %{version} | tr '~' '.')
 
 Name:          mutter
-Version:       42.2
+Version:       43~alpha
 Release:       1%{?dist}
 Summary:       Window and compositing manager based on Clutter
 
@@ -169,6 +169,9 @@ desktop-file-validate %{buildroot}/%{_datadir}/applications/%{name}.desktop
 %{_datadir}/mutter-%{mutter_api_version}/tests
 
 %changelog
+* Sun Jul 10 2022 Florian Müllner <fmuellner@redhat.com> - 43~alpha-1
+ - Update to 43.alpha
+
 * Sun May 29 2022 Florian Müllner <fmuellner@redhat.com> - 42.2-1
 - Update to 42.2
 
diff --git a/sources b/sources
index 53bdf0d..41ea14c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mutter-42.2.tar.xz) = e43bdc7c9183b2578ae1f777fdf84bfde550a26bfc28fd4a1a183c7f310d852110f3dcabd50a2fabdafba4cfb8aa6577aec4c65775075f0afff7bd1bb4dde957
+SHA512 (mutter-43.alpha.tar.xz) = e6324113b84492eaa5656cec436189fc3e668148aca24535287da7665c8a814d84357511daa5350429bd401628ff221c938dfa3c99669f13edd9dd69a44783d3