diff --git a/libxfce4ui.spec b/libxfce4ui.spec
index e093cd8..4af9527 100644
--- a/libxfce4ui.spec
+++ b/libxfce4ui.spec
@@ -1,6 +1,6 @@
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          libxfce4ui
-Version:       4.18.6
+Version:       4.20.0
 Release:       1mamba
 Summary:       Xfce's unified widgets library
 Group:         System/Libraries
@@ -19,6 +19,7 @@ BuildRequires: libX11-devel
 BuildRequires: libat-spi2-core-devel
 BuildRequires: libcairo-devel
 BuildRequires: libepoxy-devel
+BuildRequires: libgcc
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
 BuildRequires: libgtk3-devel
@@ -29,6 +30,7 @@ BuildRequires: libpango-devel
 BuildRequires: libstartup-notification-devel
 BuildRequires: libxfce4util-devel
 BuildRequires: libxfconf-devel
+BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 Provides:      libxfce4mcs
 Obsoletes:     libxfce4mcs < 4.16.1
@@ -81,8 +83,6 @@ This package includes the %{name} API documentation.
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post -p /sbin/ldconfig
-%postun -p /sbin/ldconfig
 
 %files -f %{name}.lang
 %defattr(-,root,root)
@@ -119,6 +119,9 @@ This package includes the %{name} API documentation.
 %{_datadir}/gtk-doc/html/%{name}
 
 %changelog
+* Sun Dec 15 2024 Automatic Build System <autodist@openmamba.org> 4.20.0-1mamba
+- automatic version update by autodist
+
 * Fri Mar 08 2024 Automatic Build System <autodist@openmamba.org> 4.18.6-1mamba
 - automatic version update by autodist