diff --git a/autotrace.spec b/autotrace.spec
index f0ca31c..0cc9b09 100644
--- a/autotrace.spec
+++ b/autotrace.spec
@@ -1,12 +1,12 @@
 Name:          autotrace
 Version:       0.31.1
-Release:       13mamba
+Release:       14mamba
 Summary:       Utility for converting bitmaps to vector graphics
 Group:         Applications/Multimedia
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://autotrace.sf.net/
+URL:           http://autotrace.sourceforge.net/
 Source:        http://dl.sf.net/autotrace/autotrace-%{version}.tar.gz
 Patch0:        %{name}-0.31.1-gcc4.patch
 Patch1:        %{name}-0.31.1-pstoedit.patch
@@ -15,38 +15,37 @@ Patch3:        autotrace-0.31.1-libpng-1.5.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: ImageMagick-devel
+BuildRequires: libX11-devel
+BuildRequires: libXau-devel
+BuildRequires: libXdmcp-devel
+BuildRequires: libXpm-devel
+BuildRequires: libbrotli-devel
+BuildRequires: libbsd-devel
 BuildRequires: libbzip2-devel
-BuildRequires: libEMF-devel
 BuildRequires: libexpat-devel
 BuildRequires: libfontconfig-devel
 BuildRequires: libfreetype-devel
 BuildRequires: libgd-devel
-BuildRequires: libICE-devel
+BuildRequires: libgif-devel
+BuildRequires: libglib-devel
+BuildRequires: libgraphite2-devel
+BuildRequires: libharfbuzz-devel
+BuildRequires: libjbig-devel
 BuildRequires: libjpeg-devel
+BuildRequires: liblzma-devel
 BuildRequires: libming-devel
-BuildRequires: libplot-devel
+BuildRequires: libpcre-devel
 BuildRequires: libpng-devel
 BuildRequires: libpstoedit-devel
-BuildRequires: libpthread-stubs-devel
-BuildRequires: libSM-devel
 BuildRequires: libstdc++6-devel
-BuildRequires: libgif-devel
-BuildRequires: libuuid-devel
-BuildRequires: libX11-devel
-BuildRequires: libXau-devel
-BuildRequires: libXaw-devel
+BuildRequires: libtiff-devel
+BuildRequires: libwebp-devel
 BuildRequires: libxcb-devel
-BuildRequires: libXdmcp-devel
-BuildRequires: libXext-devel
-BuildRequires: libXmu-devel
-BuildRequires: libXpm-devel
-BuildRequires: libXt-devel
 BuildRequires: libz-devel
+BuildRequires: libzstd-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libMagick-devel >= 6.8.6
 Requires:      libautotrace = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 AutoTrace is a program for converting bitmaps to vector graphics.
@@ -61,8 +60,7 @@ Group:         System/Libraries
 AutoTrace is a program for converting bitmaps to vector graphics.
 The aim of the AutoTrace project is the development of a freely-available application similar to CorelTrace or Adobe Streamline. In some aspects it is already better.
 Originally being created as a plugin for the GIMP, AutoTrace is now a standalone program and can be compiled on any UNIX platform using GCC.
-
-This package contains static libraries and header files need for development.
+This package contains static libraries and header files needed for development.
 
 %package -n libautotrace-devel
 Summary:       Devel package for lib%{name}
@@ -73,8 +71,9 @@ Requires:      libautotrace = %{?epoch:%epoch:}%{version}-%{release}
 AutoTrace is a program for converting bitmaps to vector graphics.
 The aim of the AutoTrace project is the development of a freely-available application similar to CorelTrace or Adobe Streamline. In some aspects it is already better.
 Originally being created as a plugin for the GIMP, AutoTrace is now a standalone program and can be compiled on any UNIX platform using GCC.
+This package contains static libraries and header files needed for development.
 
-This package contains static libraries and header files need for development.
+%debug_package
 
 %prep
 %setup -q
@@ -109,7 +108,7 @@ autoreconf -i
 %files
 %defattr(-, root, root)
 %{_bindir}/autotrace
-%{_mandir}/man1/autotrace.1.gz
+%{_mandir}/man1/autotrace.1*
 
 %files -n libautotrace
 %defattr(-, root, root)
@@ -130,6 +129,9 @@ autoreconf -i
 %doc ChangeLog
 
 %changelog
+* Sun Aug 01 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.31.1-14mamba
+- rebuilt with libgd 2.3.2
+
 * Tue Aug 27 2013 Silvan Calarco <silvan.calarco@mambasoft.it> 0.31.1-13mamba
 - rebuilt with libMagick 6.8.6.9