diff --git a/synfigstudio.spec b/synfigstudio.spec
index 86a7084..2b5900a 100644
--- a/synfigstudio.spec
+++ b/synfigstudio.spec
@@ -1,5 +1,5 @@
 Name:          synfigstudio
-Version:       1.4.4
+Version:       1.4.5
 Release:       1mamba
 Summary:       Animation studio for synfig and provides the GUI interface to create synfig animations
 Group:         Graphical Desktop/Applications/Graphics
@@ -39,6 +39,7 @@ BuildRequires: libstdc++6-devel
 BuildRequires: libsynfig-devel
 BuildRequires: libxml++2-devel
 BuildRequires: libxml2-devel
+BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libMagick-devel >= 7.1.0.35-1mamba
 BuildRequires: synfig = %{version}
@@ -154,6 +155,9 @@ exit 0
 
 
 %changelog
+* Thu Nov 07 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 1.4.5-1mamba
+- update to 1.4.5
+
 * Sun Aug 20 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.4.4-1mamba
 - update to 1.4.4