diff --git a/vulkan-loader.spec b/vulkan-loader.spec
index 24a1c3f..03aebdc 100644
--- a/vulkan-loader.spec
+++ b/vulkan-loader.spec
@@ -1,5 +1,5 @@
 Name:          vulkan-loader
-Version:       1.2.166
+Version:       1.2.170
 Release:       1mamba
 Summary:       A library that is placed between a Vulkan application and any number of Vulkan drivers, in order to support multiple drivers
 Group:         System/Libraries
@@ -16,7 +16,6 @@ BuildRequires: ldconfig
 BuildRequires: cmake
 BuildRequires: vulkan-headers >= %{version}
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 The ICD loader is a library that is placed between a Vulkan application and any number of Vulkan drivers, in order to support multiple drivers and the instance-level functionality that works across these drivers.
@@ -69,6 +68,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Thu Feb 25 2021 Automatic Build System <autodist@mambasoft.it> 1.2.170-1mamba
+- automatic version update by autodist
+
 * Wed Jan 06 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2.166-1mamba
 - update to 1.2.166