diff --git a/Makefile b/Makefile
index 898db46..4556ff0 100644
--- a/Makefile
+++ b/Makefile
@@ -4,9 +4,9 @@ KERNEL_MIN=15
 KERNEL_PATCHLEVEL=18
 # increment KREL if the ABI changes (abicheck target in debian/rules)
 # rebuild packages with new KREL and run 'make abiupdate'
-KREL=22
+KREL=23
 
-PKGREL=50
+PKGREL=51
 
 KERNEL_MAJMIN=$(KERNEL_MAJ).$(KERNEL_MIN)
 KERNEL_VER=$(KERNEL_MAJMIN).$(KERNEL_PATCHLEVEL)
diff --git a/debian/changelog b/debian/changelog
index f84c60a..4bed652 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,14 @@
+pve-kernel (4.15.18-51) pve pmg; urgency=medium
+
+  * update to Ubuntu-4.15.0-69.78
+
+  * avoid bogus error message about PC Speaker module being already registered
+    on boot
+
+  * bump ABI to 4.15.18-23
+
+ -- Proxmox Support Team <support@proxmox.com>  Wed, 13 Nov 2019 11:20:34 +0100
+
 pve-kernel (4.15.18-50) pve pmg; urgency=medium
 
   * update to Ubuntu-4.15.0-68.77