diff --git a/gtk-4.12.2.tar.xz b/gtk-4.12.2.tar.xz
deleted file mode 100644
index 14cb1a9..0000000
--- a/gtk-4.12.2.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:2f4f4d4f92e09f216d386cfdadd54d33d97f23a4555d67b97decfa6f815b6b81
-size 16942832
diff --git a/gtk-4.12.3.tar.xz b/gtk-4.12.3.tar.xz
new file mode 100644
index 0000000..11593bb
--- /dev/null
+++ b/gtk-4.12.3.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:148ce262f6c86487455fb1d9793c3f58bc3e1da477a29617fadb0420f5870a89
+size 16930224
diff --git a/gtk4.changes b/gtk4.changes
index 14707a0..c8a84a7 100644
--- a/gtk4.changes
+++ b/gtk4.changes
@@ -1,3 +1,16 @@
+-------------------------------------------------------------------
+Thu Sep 28 14:47:46 UTC 2023 - Bjørn Lie <bjorn.lie@gmail.com>
+
+- Update to version 4.12.3:
+  + GtkWindow: Don't assume titlebars are GtkHeaderBar
+  + GtkTreeView: Fix a crash in gtk_tree_view_is_blank_at_pos
+  + printing: Fix some issues with the portal implementation
+  + GSK:
+    - Some optimizations in the GL renderer
+    - Fix memory leaks in the Broadway renderer
+  + demos: Fix a crash in gtk4-demo
+  + Updated translations.
+
 -------------------------------------------------------------------
 Wed Sep 20 22:39:12 UTC 2023 - Luciano Santos <luc14n0@opensuse.org>
 
diff --git a/gtk4.spec b/gtk4.spec
index 0cec677..0c6ba5a 100644
--- a/gtk4.spec
+++ b/gtk4.spec
@@ -29,7 +29,7 @@
 %endif
 
 Name:           gtk4
-Version:        4.12.2
+Version:        4.12.3
 Release:        0
 Summary:        The GTK+ toolkit library (version 4)
 License:        LGPL-2.1-or-later