diff --git a/desktop/toolkit/gtk/gtkmm4/pspec.xml b/desktop/toolkit/gtk/gtkmm4/pspec.xml
index 5343683ed5..10f95b897f 100644
--- a/desktop/toolkit/gtk/gtkmm4/pspec.xml
+++ b/desktop/toolkit/gtk/gtkmm4/pspec.xml
@@ -12,7 +12,7 @@
         <IsA>library</IsA>
         <Summary>C++ binding for GTK+</Summary>
         <Description>gtkmm is the official C++ interface for the popular GUI library GTK+. Highlights include typesafe callbacks, and a comprehensive set of widgets that are easily extensible via inheritance.</Description>
-        <Archive sha1sum="98eefde6db941577603329e8510def6cb533183e" type="tarxz">http://ftp.gnome.org/pub/GNOME/sources/gtkmm/4.2/gtkmm-4.2.0.tar.xz</Archive>
+        <Archive sha1sum="55b169b8b708798512a1bda288bb7aaffb2d949b" type="tarxz">http://ftp.gnome.org/pub/GNOME/sources/gtkmm/4.12/gtkmm-4.12.0.tar.xz</Archive>
         <BuildDependencies>
             <Dependency>meson</Dependency>
             <Dependency>doxygen</Dependency>
@@ -71,6 +71,13 @@
     </Package>
 
     <History>
+        <Update release="2">
+            <Date>2023-10-26</Date>
+            <Version>4.12.0</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
         <Update release="1">
             <Date>2021-07-20</Date>
             <Version>4.2.0</Version>