diff --git a/rustc.spec b/rustc.spec
index ed01dc7..66bac63 100644
--- a/rustc.spec
+++ b/rustc.spec
@@ -1,6 +1,6 @@
 %define stage1 1
 Name:          rustc
-Version:       1.56.1
+Version:       1.57.0
 Release:       1mamba
 Summary:       The Rust programming language, designed to be a safe, concurrent, practical language
 Group:         Applications/Development
@@ -197,6 +197,9 @@ cd -
 #%doc README.md
 
 %changelog
+* Fri Dec 03 2021 Automatic Build System <autodist@mambasoft.it> 1.57.0-1mamba
+- automatic version update by autodist
+
 * Tue Nov 02 2021 Automatic Build System <autodist@mambasoft.it> 1.56.1-1mamba
 - automatic version update by autodist