diff --git a/xfce4-mixer.spec b/xfce4-mixer.spec
index 4b60eda..7bea1fb 100644
--- a/xfce4-mixer.spec
+++ b/xfce4-mixer.spec
@@ -1,13 +1,13 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          xfce4-mixer
-Version:       4.11.0.20210123git
+Version:       4.15.0
 Release:       1mamba
 Summary:       Volume control plugin for the Xfce 4 panel
 Group:         Graphical Desktop/Applications/Multimedia
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.xfce.org/
+URL:           https://www.xfce.org/
 Source:        https://github.com/xfce-mirror/xfce4-mixer.git/master@ce642ac52e0bed7495261694fd630748bf71157f/xfce4-mixer-%{version}.tar.bz2
 #Source:        http://www.xfce.org/archive/xfce-%{version}/src/xfce4-mixer-%{version}.tar.bz2
 Patch0:        xfce4-mixer-4.11.0.20210123git-libalsa-1.2.4.patch
@@ -53,7 +53,6 @@ BuildRequires: libxfce4util-devel >= 4.16.0
 BuildRequires: libunique1-devel
 BuildRequires: libxfce4ui-devel >= 4.16.0
 Requires:      xfce4-panel >= 4.16.0
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 xfce4-mixer is the volume control plugin for the Xfce 4 panel. Includes a simple sound mixer.
@@ -112,6 +111,9 @@ fi
 #ChangeLog NEWS README
 
 %changelog
+* Sat Apr 03 2021 Automatic Build System <autodist@mambasoft.it> 4.15.0-1mamba
+- automatic version update by autodist
+
 * Sat Jan 23 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 4.11.0.20210123git-1mamba
 - update to 4.11.0.20210123git