diff --git a/libtiff.spec b/libtiff.spec
index 2fc86a0..1926e88 100644
--- a/libtiff.spec
+++ b/libtiff.spec
@@ -1,5 +1,5 @@
 Name:          libtiff
-Version:       4.5.0
+Version:       4.5.1
 Release:       1mamba
 Summary:       A library of functions for manipulating TIFF format image files
 Group:         System/Libraries
@@ -146,6 +146,9 @@ rm -f %{buildroot}%{_mandir}/man1/tiffgt.*
 %endif
 
 %changelog
+* Thu Jun 15 2023 Automatic Build System <autodist@mambasoft.it> 4.5.1-1mamba
+- automatic version update by autodist
+
 * Sat Dec 17 2022 Automatic Build System <autodist@mambasoft.it> 4.5.0-1mamba
 - automatic version update by autodist