diff --git a/lxdm.spec b/lxdm.spec
index 200604b..69968d7 100644
--- a/lxdm.spec
+++ b/lxdm.spec
@@ -1,6 +1,6 @@
 Name:          lxdm
 Version:       0.5.3
-Release:       2mamba
+Release:       3mamba
 Summary:       Login manager for the Lightweight X11 Desktop Environment
 Group:         Graphical Desktop/Applications/Environment
 Vendor:        openmamba
@@ -18,14 +18,14 @@ Patch7:        lxdm-0.5.0-xsessions-openmamba.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
+BuildRequires: ldconfig
 BuildRequires: libX11-devel
 BuildRequires: libatk-devel
 BuildRequires: libcairo-devel
-BuildRequires: libfontconfig-devel
-BuildRequires: libfreetype-devel
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
-BuildRequires: libgtk2-devel
+BuildRequires: libgtk-devel
+BuildRequires: libharfbuzz-devel
 BuildRequires: libpam-devel
 BuildRequires: libpango-devel
 BuildRequires: libxcb-devel
@@ -50,10 +50,11 @@ Login manager for the Lightweight X11 Desktop Environment.
 # Remove pregenerated lxdm.conf to recreate with passed directories
 # Fixes configuring for using /usr/local/libexec
 rm -f data/lxdm.conf
+autoreconf -f -i
 
 %build
-autoreconf -f -i
 %configure \
+   --enable-gtk3 \
    --disable-consolekit
 
 %make
@@ -134,6 +135,9 @@ fi
 #README TODO
 
 %changelog
+* Sat Nov 21 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.5.3-3mamba
+- rebuilt with gtk3
+
 * Fri Jan 31 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.5.3-2mamba
 - require haveged