diff --git a/lz4.spec b/lz4.spec
index f6195e0..0909cb0 100644
--- a/lz4.spec
+++ b/lz4.spec
@@ -1,5 +1,5 @@
 Name:          lz4
-Version:       1.9.0
+Version:       1.9.1
 Release:       1mamba
 Summary:       Extremely Fast Compression algorithm
 Group:         Applications/Archiving
@@ -93,6 +93,9 @@ This package contains libraries and header files for developing applications tha
 #%doc NEWS README.md
 
 %changelog
+* Thu Apr 25 2019 Automatic Build System <autodist@mambasoft.it> 1.9.1-1mamba
+- automatic version update by autodist
+
 * Sun Apr 21 2019 Automatic Build System <autodist@mambasoft.it> 1.9.0-1mamba
 - automatic version update by autodist