diff --git a/cups-filters.spec b/cups-filters.spec
index 74b5c53..2308cb0 100644
--- a/cups-filters.spec
+++ b/cups-filters.spec
@@ -1,5 +1,5 @@
 Name:          cups-filters
-Version:       1.20.4
+Version:       1.21.1
 Release:       1mamba
 Summary:       Backends, filters, and other software for the CUPS printing system
 Group:         System/Spooling
@@ -170,6 +170,9 @@ install -D -m0644 utils/cups-browsed.service %{buildroot}%{_unitdir}/cups-browse
 %{_datadir}/doc/cups-filters/README
 
 %changelog
+* Sun Aug 26 2018 Automatic Build System <autodist@mambasoft.it> 1.21.1-1mamba
+- automatic version update by autodist
+
 * Wed Jul 18 2018 Automatic Build System <autodist@mambasoft.it> 1.20.4-1mamba
 - automatic version update by autodist