diff --git a/rustc.spec b/rustc.spec
index 939d9ca..ed01dc7 100644
--- a/rustc.spec
+++ b/rustc.spec
@@ -1,6 +1,6 @@
 %define stage1 1
 Name:          rustc
-Version:       1.56.0
+Version:       1.56.1
 Release:       1mamba
 Summary:       The Rust programming language, designed to be a safe, concurrent, practical language
 Group:         Applications/Development
@@ -13,7 +13,6 @@ Patch0:        rustc-1.25.0-disable-llvm-ocaml-binding.patch
 License:       MIT
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libatomic-devel
 BuildRequires: libcurl-devel
 BuildRequires: libgcc
 BuildRequires: libgit2-devel
@@ -198,6 +197,9 @@ cd -
 #%doc README.md
 
 %changelog
+* Tue Nov 02 2021 Automatic Build System <autodist@mambasoft.it> 1.56.1-1mamba
+- automatic version update by autodist
+
 * Wed Oct 27 2021 Automatic Build System <autodist@mambasoft.it> 1.56.0-1mamba
 - automatic version update by autodist