diff --git a/system-config-printer.spec b/system-config-printer.spec
index 394a6ea..80bc8b4 100644
--- a/system-config-printer.spec
+++ b/system-config-printer.spec
@@ -1,15 +1,16 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          system-config-printer
-Version:       1.5.11
-Release:       4mamba
+Version:       1.5.12
+Release:       1mamba
 Summary:       Helper functions and classes for using CUPS
 Group:         System/Libraries/Python
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://cyberelk.net/tim/software/system-config-printer/
-Source:        https://github.com/zdohnal/system-config-printer/releases/download/%{version}/system-config-printer-%{version}.tar.xz
+Source:        https://github.com/OpenPrinting/system-config-printer.git/%{version}/system-config-printer-%{version}.tar.bz2
+#Source:        https://github.com/zdohnal/system-config-printer/releases/download/%{version}/system-config-printer-%{version}.tar.xz
 Patch0:        system-config-printer-1.4.1-newprinter-smb_select_function-argsfix.patch
 Patch1:        system-config-printer-1.4.3-scp-dbus-service-fix-dbus-signature-typo.patch
 Patch2:        system-config-printer-1.5.7-python3-udev-add-printer.patch
@@ -50,6 +51,9 @@ The purpose of the tool is to configure a CUPS server (often the local machine)
 #%patch0 -p1
 #%patch1 -p1
 #%patch2 -p1
+
+./bootstrap 
+
 sed -i "s|!/usr/bin/python3|!%{__python36}|" \
    *.py */*.py udev/udev-add-printer
 
@@ -95,6 +99,9 @@ sed -i "s|!/usr/bin/python3|!%{__python36}|" \
 %{_mandir}/man1/system-config-printer-applet.1*
 
 %changelog
+* Sat Nov 09 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.12-1mamba
+- update to 1.5.12
+
 * Mon Aug 12 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.11-4mamba
 - fix for python 3.6 also in udev-add-printer