diff --git a/openpower/configs/barreleye_defconfig b/openpower/configs/barreleye_defconfig
index 354a54c..1bd0649 100644
--- a/openpower/configs/barreleye_defconfig
+++ b/openpower/configs/barreleye_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/firenze_defconfig b/openpower/configs/firenze_defconfig
index 1a8b707..141ed0a 100644
--- a/openpower/configs/firenze_defconfig
+++ b/openpower/configs/firenze_defconfig
@@ -13,7 +13,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/firestone_defconfig b/openpower/configs/firestone_defconfig
index 72da89f..ff11c6a 100644
--- a/openpower/configs/firestone_defconfig
+++ b/openpower/configs/firestone_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/garrison_defconfig b/openpower/configs/garrison_defconfig
index 2e58c5a..9b157d5 100644
--- a/openpower/configs/garrison_defconfig
+++ b/openpower/configs/garrison_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/habanero_defconfig b/openpower/configs/habanero_defconfig
index d7f3e6f..319be3d 100644
--- a/openpower/configs/habanero_defconfig
+++ b/openpower/configs/habanero_defconfig
@@ -15,7 +15,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/openpower_mambo_defconfig b/openpower/configs/openpower_mambo_defconfig
index f741646..86d7e71 100644
--- a/openpower/configs/openpower_mambo_defconfig
+++ b/openpower/configs/openpower_mambo_defconfig
@@ -11,7 +11,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/p9dsu_defconfig b/openpower/configs/p9dsu_defconfig
index e1dc84a..2e048ee 100644
--- a/openpower/configs/p9dsu_defconfig
+++ b/openpower/configs/p9dsu_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/palmetto_defconfig b/openpower/configs/palmetto_defconfig
index f53937d..0e71aef 100644
--- a/openpower/configs/palmetto_defconfig
+++ b/openpower/configs/palmetto_defconfig
@@ -13,7 +13,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/pseries_defconfig b/openpower/configs/pseries_defconfig
index 2c936d0..12cea02 100644
--- a/openpower/configs/pseries_defconfig
+++ b/openpower/configs/pseries_defconfig
@@ -13,7 +13,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/pseries_skiroot_defconfig"
diff --git a/openpower/configs/romulus_defconfig b/openpower/configs/romulus_defconfig
index 679d6a2..918bf0b 100644
--- a/openpower/configs/romulus_defconfig
+++ b/openpower/configs/romulus_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
@@ -41,7 +41,7 @@
 BR2_OPENPOWER_POWER9=y
 BR2_HOSTBOOT_CONFIG_FILE="romulus.config"
 BR2_OPENPOWER_MACHINE_XML_GITHUB_PROJECT_VALUE="romulus-xml"
-BR2_OPENPOWER_MACHINE_XML_VERSION="93456eecf03867095eed5d972278f48c034063d5"
+BR2_OPENPOWER_MACHINE_XML_VERSION="d91ade7643d6cabc0ba1d5c6f53d3f02c5b01fda"
 BR2_OPENPOWER_MACHINE_XML_FILENAME="romulus.xml"
 BR2_OPENPOWER_SYSTEM_XML_FILENAME="ROMULUS_hb.system.xml"
 BR2_OPENPOWER_MRW_XML_FILENAME="ROMULUS_hb.mrw.xml"
diff --git a/openpower/configs/vesnin_defconfig b/openpower/configs/vesnin_defconfig
index 9167472..280c3b5 100644
--- a/openpower/configs/vesnin_defconfig
+++ b/openpower/configs/vesnin_defconfig
@@ -13,7 +13,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/witherspoon_defconfig b/openpower/configs/witherspoon_defconfig
index 929560a..a8367c0 100644
--- a/openpower/configs/witherspoon_defconfig
+++ b/openpower/configs/witherspoon_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/witherspoon_dev_defconfig b/openpower/configs/witherspoon_dev_defconfig
index 2821a85..00fc1f1 100644
--- a/openpower/configs/witherspoon_dev_defconfig
+++ b/openpower/configs/witherspoon_dev_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/zaius_defconfig b/openpower/configs/zaius_defconfig
index f1426cd..aa0b727 100644
--- a/openpower/configs/zaius_defconfig
+++ b/openpower/configs/zaius_defconfig
@@ -14,7 +14,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/configs/zz_defconfig b/openpower/configs/zz_defconfig
index 4ded3b9..e8b5046 100644
--- a/openpower/configs/zz_defconfig
+++ b/openpower/configs/zz_defconfig
@@ -13,7 +13,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var ../openpower/scripts/firmware-whitelist"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.3"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.18.6"
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL_OP_BUILD_PATH)/linux"
 BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
 BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_OP_BUILD_PATH)/configs/linux/skiroot_defconfig"
diff --git a/openpower/linux/0002-Release-OpenPower-kernel.patch b/openpower/linux/0002-Release-OpenPower-kernel.patch
index 47b05eb..108a4aa 100644
--- a/openpower/linux/0002-Release-OpenPower-kernel.patch
+++ b/openpower/linux/0002-Release-OpenPower-kernel.patch
@@ -1,6 +1,6 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Joel Stanley <joel@jms.id.au>
-Date: Mon, 20 Aug 2018 11:13:08 +0930
+Date: Thu, 6 Sep 2018 13:27:02 +1000
 Subject: [PATCH 2/2] Release OpenPower kernel
 
 Signed-off-by: Joel Stanley <joel@jms.id.au>
@@ -9,13 +9,13 @@
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/Makefile b/Makefile
-index e2bd815f24eb..8ee63eaae1b9 100644
+index 62524f4d42ad..02a592984725 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -2,7 +2,7 @@
  VERSION = 4
  PATCHLEVEL = 18
- SUBLEVEL = 3
+ SUBLEVEL = 6
 -EXTRAVERSION =
 +EXTRAVERSION = -openpower1
  NAME = Merciless Moray
diff --git a/openpower/package/hcode/Config.in b/openpower/package/hcode/Config.in
index 368be8e..2b63240 100644
--- a/openpower/package/hcode/Config.in
+++ b/openpower/package/hcode/Config.in
@@ -31,7 +31,7 @@
 
 config BR2_HCODE_VERSION
 	string
-	default "hw082718b.930" if BR2_HCODE_LATEST_VERSION
+	default "hw090518a.930" if BR2_HCODE_LATEST_VERSION
 	default BR2_HCODE_CUSTOM_VERSION_VALUE \
 		if BR2_HCODE_CUSTOM_VERSION
 
diff --git a/openpower/package/hostboot-binaries/Config.in b/openpower/package/hostboot-binaries/Config.in
index 587054e..3e4be2a 100644
--- a/openpower/package/hostboot-binaries/Config.in
+++ b/openpower/package/hostboot-binaries/Config.in
@@ -24,7 +24,7 @@
 
 config BR2_HOSTBOOT_BINARIES_VERSION
 	string
-	default "hw082818a.930" if BR2_HOSTBOOT_BINARIES_LATEST_VERSION
+	default "hw090518a.930" if BR2_HOSTBOOT_BINARIES_LATEST_VERSION
 	default BR2_HOSTBOOT_BINARIES_CUSTOM_VERSION_VALUE \
 		if BR2_HOSTBOOT_BINARIES_CUSTOM_VERSION
 
diff --git a/openpower/package/hostboot-p8/hostboot-p8.mk b/openpower/package/hostboot-p8/hostboot-p8.mk
index c50679e..9f6d45f 100644
--- a/openpower/package/hostboot-p8/hostboot-p8.mk
+++ b/openpower/package/hostboot-p8/hostboot-p8.mk
@@ -3,7 +3,7 @@
 # hostboot for POWER8
 #
 ################################################################################
-HOSTBOOT_P8_VERSION ?= d3025f5d7ddd0723946bb54fcb471d2bf1fd2da4
+HOSTBOOT_P8_VERSION ?= e74ef0f31e326658cb7165c205aa30978564b2df
 
 HOSTBOOT_P8_SITE ?= $(call github,open-power,hostboot,$(HOSTBOOT_P8_VERSION))
 
diff --git a/openpower/package/hostboot/Config.in b/openpower/package/hostboot/Config.in
index 7d80159..db21d3e 100644
--- a/openpower/package/hostboot/Config.in
+++ b/openpower/package/hostboot/Config.in
@@ -28,7 +28,7 @@
 
 config BR2_HOSTBOOT_VERSION
 	string
-	default "8cb89b7faae91267ba9c1c03531a26882f2a59e0" if BR2_HOSTBOOT_LATEST_VERSION
+	default "7c5afbddbf0a3f795ad8404319e09a3ff00b11b8" if BR2_HOSTBOOT_LATEST_VERSION
         default "876b79aacd9b14f4c3561e954daa0285747c9662" if BR2_HOSTBOOT_STABLE_VERSION
 	default BR2_HOSTBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_HOSTBOOT_CUSTOM_VERSION
diff --git a/openpower/package/petitboot/petitboot.hash b/openpower/package/petitboot/petitboot.hash
index b357f1b..15dacfd 100644
--- a/openpower/package/petitboot/petitboot.hash
+++ b/openpower/package/petitboot/petitboot.hash
@@ -1 +1 @@
-sha256 85f866c861e72f7e1f73458be0f73fe6a9759fb015db237c69da0fdb001085ce  petitboot-1.9.0.tar.gz
+sha256 607551a13c286af7941fd52450106d8629b4f25e6125f5cbd67a359544b3cbe3  petitboot-1.9.1.tar.gz
diff --git a/openpower/package/petitboot/petitboot.mk b/openpower/package/petitboot/petitboot.mk
index dc1ca04..8e81094 100644
--- a/openpower/package/petitboot/petitboot.mk
+++ b/openpower/package/petitboot/petitboot.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PETITBOOT_VERSION = 1.9.0
+PETITBOOT_VERSION = 1.9.1
 PETITBOOT_SOURCE = petitboot-$(PETITBOOT_VERSION).tar.gz
 PETITBOOT_SITE ?= https://github.com/open-power/petitboot/releases/download/v$(PETITBOOT_VERSION)
 PETITBOOT_DEPENDENCIES = ncurses udev host-bison host-flex lvm2