diff --git a/harfbuzz.spec b/harfbuzz.spec
index 4b450b4..1896c08 100644
--- a/harfbuzz.spec
+++ b/harfbuzz.spec
@@ -1,5 +1,5 @@
 Name:          harfbuzz
-Version:       3.4.0
+Version:       4.0.0
 Release:       1mamba
 Summary:       An OpenType text shaping library
 Group:         System/Libraries
@@ -116,6 +116,9 @@ This package includes the %{name} API documentation.
 %{_datadir}/gtk-doc/html/harfbuzz/*
 
 %changelog
+* Wed Mar 02 2022 Automatic Build System <autodist@mambasoft.it> 4.0.0-1mamba
+- automatic version update by autodist
+
 * Sun Feb 13 2022 Automatic Build System <autodist@mambasoft.it> 3.4.0-1mamba
 - automatic version update by autodist