diff --git a/zstd.spec b/zstd.spec
index dc2355c..a5e1d7e 100644
--- a/zstd.spec
+++ b/zstd.spec
@@ -1,12 +1,12 @@
 Name:          zstd
-Version:       1.4.8
+Version:       1.4.9
 Release:       1mamba
 Summary:       Zstandard - Fast real-time compression algorithm
 Group:         Applications/Archiving
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.zstd.net/
+URL:           https://www.zstd.net/
 ## GITSOURCE https://github.com/facebook/zstd.git v1.3.3
 Source:        https://github.com/facebook/zstd.git/v%{version}/zstd-%{version}.tar.bz2
 License:       GPL
@@ -16,7 +16,6 @@ BuildRequires: liblzma-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 Zstandard - Fast real-time compression algorithm.
@@ -83,6 +82,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Thu Mar 04 2021 Automatic Build System <autodist@mambasoft.it> 1.4.9-1mamba
+- automatic version update by autodist
+
 * Thu Jan 21 2021 Automatic Build System <autodist@mambasoft.it> 1.4.8-1mamba
 - automatic version update by autodist