diff --git a/strace.spec b/strace.spec
index bf17dd5..acd1948 100644
--- a/strace.spec
+++ b/strace.spec
@@ -1,5 +1,5 @@
 Name:          strace
-Version:       4.21
+Version:       4.23
 Release:       1mamba
 Summary:       A debugging tool which prints out all the system calls made by a process/program
 Group:         Development/Tools
@@ -7,7 +7,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Aleph0 <aleph0@openmamba.org>
 URL:           http://sourceforge.net/projects/strace/
-Source:        http://downloads.sourceforge.net/strace/strace-%{version}.tar.xz
+Source:        https://github.com/strace/strace.git/v%{version}/strace-%{version}.tar.bz2
 Patch0:        strace-4.7-os-release-detect-openmamba.patch
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -38,6 +38,8 @@ This package contains strace-graph, a script that processes strace output files.
 #%patch0 -p1
 
 %build
+sh ./bootstrap
+#autoreconf -f -i
 %configure
 %make
 
@@ -54,7 +56,7 @@ This package contains strace-graph, a script that processes strace output files.
 %{_bindir}/strace-log-merge
 %{_mandir}/man1/strace.1*
 %{_mandir}/man1/strace-log-merge.1*
-%doc AUTHORS COPYING CREDITS
+%doc AUTHORS COPYING
 #ChangeLog NEWS README README-linux
 
 %files graph
@@ -62,6 +64,9 @@ This package contains strace-graph, a script that processes strace output files.
 %{_bindir}/strace-graph
 
 %changelog
+* Sat Jul 28 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 4.23-1mamba
+- update to 4.23
+
 * Thu Mar 22 2018 Automatic Build System <autodist@mambasoft.it> 4.21-1mamba
 - automatic version update by autodist