diff --git a/shorewall-core.spec b/shorewall-core.spec
index ad0dc0d..74194d8 100644
--- a/shorewall-core.spec
+++ b/shorewall-core.spec
@@ -1,7 +1,7 @@
 %define majver %(echo %version | cut -d. -f1-2)
 %define maj3ver %(echo %version | cut -d. -f1-3)
 Name:          shorewall-core
-Version:       5.1.12.1
+Version:       5.1.12.3
 Release:       1mamba
 Summary:       Shoreline Firewall, a high-level tool for configuring Netfilter
 Group:         Network/Security
@@ -53,6 +53,9 @@ mv %{buildroot}/usr/man/* %{buildroot}/%{_mandir}/
 %doc COPYING
 
 %changelog
+* Mon Mar 05 2018 Automatic Build System <autodist@mambasoft.it> 5.1.12.3-1mamba
+- automatic version update by autodist
+
 * Sat Feb 10 2018 Automatic Build System <autodist@mambasoft.it> 5.1.12.1-1mamba
 - automatic version update by autodist