diff --git a/xz-5.4.4.tar.gz b/xz-5.4.4.tar.gz
deleted file mode 100644
index ca75d77..0000000
--- a/xz-5.4.4.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:aae39544e254cfd27e942d35a048d592959bd7a79f9a624afb0498bb5613bdf8
-size 2874706
diff --git a/xz-5.4.4.tar.gz.sig b/xz-5.4.4.tar.gz.sig
deleted file mode 100644
index 6af9c12..0000000
Binary files a/xz-5.4.4.tar.gz.sig and /dev/null differ
diff --git a/xz-5.4.5.tar.gz b/xz-5.4.5.tar.gz
new file mode 100644
index 0000000..905e207
--- /dev/null
+++ b/xz-5.4.5.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:135c90b934aee8fbc0d467de87a05cb70d627da36abe518c357a873709e5b7d6
+size 2884510
diff --git a/xz-5.4.5.tar.gz.sig b/xz-5.4.5.tar.gz.sig
new file mode 100644
index 0000000..8a1770a
Binary files /dev/null and b/xz-5.4.5.tar.gz.sig differ
diff --git a/xz.changes b/xz.changes
index c039c9c..1f390b3 100644
--- a/xz.changes
+++ b/xz.changes
@@ -1,3 +1,26 @@
+-------------------------------------------------------------------
+Tue Nov  7 16:10:26 UTC 2023 - Andrea Manzini <andrea.manzini@suse.com>
+
+- Update to version 5.4.5:
+  * liblzma:
+      - Fixed an assertion failure that could be triggered by a large
+        unpadded_size argument. It was verified that there was no
+        other bug than the assertion failure.
+
+      - Fixed a bug that prevented building with Windows Vista
+        threading when __attribute__((__constructor__)) is not
+        supported.
+
+  * xz now properly handles special files such as "con" or "nul" on
+    Windows. Before this fix, the following wrote "foo" to the
+    console and deleted the input file "con_xz":
+
+        echo foo | xz > con_xz
+        xz --suffix=_xz --decompress con_xz
+
+  * Small fixes and improvements to the tests.
+  * Updated translations: Chinese (simplified) and Esperanto.
+
 -------------------------------------------------------------------
 Wed Aug 16 13:58:09 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
 
diff --git a/xz.spec b/xz.spec
index 5fed776..3a0171a 100644
--- a/xz.spec
+++ b/xz.spec
@@ -19,7 +19,7 @@
 # avoid bootstrapping problem
 %define _binary_payload w9.bzdio
 Name:           xz
-Version:        5.4.4
+Version:        5.4.5
 Release:        0
 Summary:        A Program for Compressing Files with the Lempel–Ziv–Markov algorithm
 License:        GPL-2.0-or-later AND GPL-3.0-or-later AND LGPL-2.1-or-later AND SUSE-Public-Domain