diff --git a/graphviz.spec b/graphviz.spec
index 57b511f..852d8f2 100644
--- a/graphviz.spec
+++ b/graphviz.spec
@@ -1,7 +1,7 @@
 %define        libname  lib%{name}
 
 Name:          graphviz
-Version:       2.47.0
+Version:       2.47.1
 Release:       1mamba
 Summary:       Graph Visualization Tools
 Group:         Applications/Graphics
@@ -21,7 +21,6 @@ Patch6:        graphviz-2.38.0-lua-5.3.patch
 License:       Common Public Attribution License 1.0
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: ldconfig
 BuildRequires: libGL-devel
 BuildRequires: libGLU-devel
 BuildRequires: libICE-devel
@@ -41,9 +40,8 @@ BuildRequires: libbrotli-devel
 BuildRequires: libbsd-devel
 BuildRequires: libbzip2-devel
 BuildRequires: libcairo-devel
-#BuildRequires: libdevil-devel
+BuildRequires: libdevil-devel
 BuildRequires: libe2fs-devel
-BuildRequires: libelf-devel
 BuildRequires: libexpat-devel
 BuildRequires: libffi-devel
 BuildRequires: libfontconfig-devel
@@ -74,7 +72,6 @@ BuildRequires: libnsl-devel
 BuildRequires: libpango-devel
 BuildRequires: libpcre-devel
 BuildRequires: libperl
-BuildRequires: libpixman-devel
 BuildRequires: libpng-devel
 BuildRequires: libpoppler-glib-devel
 BuildRequires: libpython27-devel
@@ -82,7 +79,6 @@ BuildRequires: libpython3-devel
 BuildRequires: libqt5-devel
 BuildRequires: libreadline-devel
 BuildRequires: librsvg-devel
-BuildRequires: libselinux-devel
 BuildRequires: libstdc++6-devel
 BuildRequires: libtermcap-devel
 BuildRequires: libtiff-devel
@@ -96,7 +92,6 @@ BuildRequires: libz-devel
 BuildRequires: libzstd-devel
 BuildRequires: ocaml-runtime
 BuildRequires: perl-devel
-BuildRequires: python3
 ## AUTOBUILDREQ-END
 BuildRequires: ocaml-runtime >= 4.11.1
 BuildRequires: libunistring-devel >= 0.9.6-1mamba
@@ -471,6 +466,9 @@ exit 0
 %{_datadir}/%{name}/doc/pdf/*
 
 %changelog
+* Tue Apr 20 2021 Automatic Build System <autodist@mambasoft.it> 2.47.1-1mamba
+- automatic version update by autodist
+
 * Wed Mar 17 2021 Automatic Build System <autodist@mambasoft.it> 2.47.0-1mamba
 - automatic version update by autodist