diff --git a/ark.spec b/ark.spec
index 0327335..3895f49 100644
--- a/ark.spec
+++ b/ark.spec
@@ -1,6 +1,6 @@
 Name:          ark
 Version:       20.12.0
-Release:       1mamba
+Release:       2mamba
 Summary:       Manager for compressed files and archives
 Group:         Graphical Desktop/Applications/Archiving
 Vendor:        openmamba
@@ -11,19 +11,47 @@ Source:        http://download.kde.org/stable/release-service/%{version}/src/ark
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ldconfig
 BuildRequires: libarchive-devel
 BuildRequires: libgcc
-BuildRequires: libphonon-devel
+BuildRequires: libkarchive-devel
+BuildRequires: libkauth-devel
+BuildRequires: libkbookmarks-devel
+BuildRequires: libkcodecs-devel
+BuildRequires: libkcompletion-devel
+BuildRequires: libkconfig-devel
+BuildRequires: libkconfigwidgets-devel
+BuildRequires: libkcoreaddons-devel
+BuildRequires: libkcrash-devel
+BuildRequires: libkdbusaddons-devel
+BuildRequires: libki18n-devel
+BuildRequires: libkio-devel
+BuildRequires: libkitemmodels-devel
+BuildRequires: libkitemviews-devel
+BuildRequires: libkjobwidgets-devel
+BuildRequires: libkparts-devel
+BuildRequires: libkpty-devel
+BuildRequires: libkservice-devel
+BuildRequires: libktextwidgets-devel
+BuildRequires: libkwidgetsaddons-devel
+BuildRequires: libkwindowsystem-devel
+BuildRequires: libkxmlgui-devel
 BuildRequires: libqt5-devel
-BuildRequires: libsoprano-devel
+BuildRequires: libsolid-devel
+BuildRequires: libsonnet-devel
 BuildRequires: libstdc++6-devel
+BuildRequires: libz-devel
+BuildRequires: libzip-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 BuildRequires: libbzip2-devel
 BuildRequires: liblzma-devel
 BuildRequires: libqjson-devel
-BuildRequires: libz-devel
-#Requires:      kde-workspace
+BuildRequires: lrzip
+BuildRequires: zstd
+BuildRequires: unrar
+BuildRequires: lzop
+BuildRequires: p7zip
 Provides:      ark4 = %{?epoch:%epoch:}%{version}-%{release}
 Provides:      libark = %{?epoch:%epoch:}%{version}-%{release}
 Provides:      libark4 = %{?epoch:%epoch:}%{version}-%{release}
@@ -38,6 +66,10 @@ Requires:      zip
 Requires:      unzip
 Requires:      binutils
 Requires:      p7zip
+Requires:      lrzip
+Requires:      zstd
+Requires:      unrar
+Requires:      lzop
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -109,6 +141,9 @@ exit 0
 %doc COPYING
 
 %changelog
+* Thu Dec 31 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 20.12.0-2mamba
+- require lrzip, zstd, unrar, lzop
+
 * Thu Dec 10 2020 Automatic Build System <autodist@mambasoft.it> 20.12.0-1mamba
 - automatic version update by autodist