diff --git a/tzdata.spec b/tzdata.spec
index 4571e5b..65b1b64 100644
--- a/tzdata.spec
+++ b/tzdata.spec
@@ -1,7 +1,7 @@
 %define        javahome    %{_jvmdir}/jdk
 
 Name:          tzdata
-Version:       2022g
+Version:       2023a
 Release:       1mamba
 Summary:       timezone data
 Group:         System/Internationalization
@@ -48,7 +48,7 @@ This package contains timezone information for use by Java runtimes.
 mkdir javazic
 tar zxf %{S:3} -C javazic
 cd javazic
-%patch0
+%patch 0
 # Hack alert! sun.tools may be defined and installed in the
 # VM. In order to guarantee that we are using IcedTea/OpenJDK
 # for creating the zoneinfo files, rebase all the packages
@@ -117,6 +117,9 @@ cp -pr zoneinfo/java %{buildroot}%{_datadir}/javazi
 %endif
 
 %changelog
+* Thu Mar 23 2023 Automatic Build System <autodist@mambasoft.it> 2023a-1mamba
+- automatic version update by autodist
+
 * Wed Nov 30 2022 Automatic Build System <autodist@mambasoft.it> 2022g-1mamba
 - automatic version update by autodist