diff --git a/mozjs91.spec b/mozjs91.spec
index 67e2896..be1b69a 100644
--- a/mozjs91.spec
+++ b/mozjs91.spec
@@ -1,7 +1,7 @@
 %define MAJver %(echo %version | cut -d. -f1)
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          mozjs91
-Version:       91.9.0
+Version:       91.9.1
 Release:       1mamba
 Summary:       Mozilla stand-alone library implementing JavaScript 24
 Group:         System/Libraries
@@ -181,6 +181,9 @@ ln -s libmozjs-%{MAJver}.so.0 %{buildroot}%{_libdir}/libmozjs-%{MAJver}.so
 %{_libdir}/pkgconfig/mozjs-%{MAJver}.pc
 
 %changelog
+* Sun May 22 2022 Automatic Build System <autodist@mambasoft.it> 91.9.1-1mamba
+- automatic version update by autodist
+
 * Mon May 09 2022 Automatic Build System <autodist@mambasoft.it> 91.9.0-1mamba
 - automatic version update by autodist