diff --git a/putty.spec b/putty.spec
index 4404669..eee9b1a 100644
--- a/putty.spec
+++ b/putty.spec
@@ -1,5 +1,5 @@
 Name:          putty
-Version:       0.80
+Version:       0.81
 Release:       1mamba
 Summary:       A free implementation of Telnet and SSH with GTK GUI
 Group:         Graphical Desktop/Applications/Networking
@@ -25,6 +25,7 @@ BuildRequires: libglib-devel
 BuildRequires: libgtk3-devel
 BuildRequires: libharfbuzz-devel
 BuildRequires: libpango-devel
+BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 
 %description
@@ -70,6 +71,9 @@ install -D -m 0644 %{S:2} \
 #README*
 
 %changelog
+* Thu May 16 2024 Automatic Build System <autodist@openmamba.org> 0.81-1mamba
+- automatic version update by autodist
+
 * Tue Dec 19 2023 Automatic Build System <autodist@mambasoft.it> 0.80-1mamba
 - automatic version update by autodist