diff --git a/Makefile b/Makefile
index 268c871..61dc886 100644
--- a/Makefile
+++ b/Makefile
@@ -3,10 +3,10 @@ include /usr/share/dpkg/pkg-info.mk
 # also bump proxmox-kernel-meta if the default MAJ.MIN version changes!
 KERNEL_MAJ=6
 KERNEL_MIN=5
-KERNEL_PATCHLEVEL=11
+KERNEL_PATCHLEVEL=13
 # increment KREL for every published package release!
 # rebuild packages with new KREL and run 'make abiupdate'
-KREL=8
+KREL=1
 
 KERNEL_MAJMIN=$(KERNEL_MAJ).$(KERNEL_MIN)
 KERNEL_VER=$(KERNEL_MAJMIN).$(KERNEL_PATCHLEVEL)
diff --git a/debian/changelog b/debian/changelog
index f8a5e5e..b46fc23 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+proxmox-kernel-6.5 (6.5.13-1) bookworm; urgency=medium
+
+  * update sources to Ubuntu-6.5.0-20.20 based on v6.5.13 and some newer
+    stable-tree backports
+
+  * backport scheduler fix to avoid temporary VM freezes on NUMA hosts
+
+ -- Proxmox Support Team <support@proxmox.com>  Mon, 05 Feb 2024 14:50:54 +0100
+
 proxmox-kernel-6.5 (6.5.11-8) bookworm; urgency=medium
 
   * fix #5077: cherry-pick revert for aacraid resets