diff --git a/snort.spec b/snort.spec
index dd3f1ee..d78c90f 100644
--- a/snort.spec
+++ b/snort.spec
@@ -5,7 +5,7 @@
 %define userid 65023
 
 Name:          snort
-Version:       3.1.56.0
+Version:       3.1.57.0
 Release:       1mamba
 Summary:       The Open Source Intrusion Detection System
 Group:         Network/Monitoring
@@ -209,6 +209,9 @@ fi
 %{_libdir}/pkgconfig/snort.pc
 
 %changelog
+* Mon Mar 13 2023 Automatic Build System <autodist@mambasoft.it> 3.1.57.0-1mamba
+- automatic version update by autodist
+
 * Fri Feb 24 2023 Automatic Build System <autodist@mambasoft.it> 3.1.56.0-1mamba
 - automatic version update by autodist