diff --git a/zstd.spec b/zstd.spec
index 6ec454a..741cb4c 100644
--- a/zstd.spec
+++ b/zstd.spec
@@ -1,13 +1,12 @@
 Name:          zstd
-Version:       1.5.0
+Version:       1.5.1
 Release:       1mamba
 Summary:       Zstandard - Fast real-time compression algorithm
 Group:         Applications/Archiving
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://www.zstd.net/
-## GITSOURCE https://github.com/facebook/zstd.git v1.3.3
+URL:           https://facebook.github.io/zstd/
 Source:        https://github.com/facebook/zstd.git/v%{version}/zstd-%{version}.tar.bz2
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
@@ -83,6 +82,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Thu Dec 30 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.5.1-1mamba
+- update to 1.5.1
+
 * Sat May 15 2021 Automatic Build System <autodist@mambasoft.it> 1.5.0-1mamba
 - automatic version update by autodist