diff --git a/system-config-printer.spec b/system-config-printer.spec
index 35ec7bd..1d7811e 100644
--- a/system-config-printer.spec
+++ b/system-config-printer.spec
@@ -2,7 +2,7 @@
 
 Name:          system-config-printer
 Version:       1.5.7
-Release:       2mamba
+Release:       3mamba
 Summary:       Helper functions and classes for using CUPS
 Group:         System/Libraries/Python
 Vendor:        openmamba
@@ -36,6 +36,8 @@ Requires:      python-smbc
 Requires:      python-cups-py3
 Requires:      python-requests-py3
 Requires:      pygobject-py3
+Requires:      python-dbus-py3
+Requires:      py3cairo
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
@@ -88,6 +90,9 @@ The purpose of the tool is to configure a CUPS server (often the local machine)
 %{_mandir}/man1/system-config-printer-applet.1*
 
 %changelog
+* Sun Jul 17 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.7-3mamba
+- require python-dbus-py3 and py3cairo
+
 * Mon Apr 04 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.7-2mamba
 - upstream patch for udev-add-printer and python3
 - updated requirements to -py3 versions