diff --git a/config/kernel-config b/config/kernel-config
index 72cda98..afd3cf8 100644
--- a/config/kernel-config
+++ b/config/kernel-config
@@ -1,6 +1,6 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/x86 4.4.19 Kernel Configuration
+# Linux/x86 4.4.21 Kernel Configuration
 #
 CONFIG_64BIT=y
 CONFIG_X86_64=y
@@ -4958,6 +4958,7 @@ CONFIG_VGA_ARB_MAX_GPUS=16
 CONFIG_VGA_SWITCHEROO=y
 CONFIG_DRM=m
 CONFIG_DRM_MIPI_DSI=y
+# CONFIG_DRM_DP_AUX_CHARDEV is not set
 CONFIG_DRM_KMS_HELPER=m
 CONFIG_DRM_KMS_FB_HELPER=y
 CONFIG_DRM_FBDEV_EMULATION=y
diff --git a/scripts/build-common b/scripts/build-common
index b7caeca..cde5d95 100644
--- a/scripts/build-common
+++ b/scripts/build-common
@@ -1,8 +1,8 @@
 #!/bin/bash
 set -e
 
-: ${KERNEL_URL:="https://github.com/rancher/linux/archive/v4.4.24-rancher1.tar.gz"}
-: ${KERNEL_SHA1:="2e0c4ef1de1a7c4dac477d3cc8fcc0854cb7dd58"}
+: ${KERNEL_URL:="https://github.com/rancher/linux/archive/Ubuntu-4.4.0-42.62-rancher1.tar.gz"}
+: ${KERNEL_SHA1:="65cd630a6e8ebc5964427d62d4bc187eaee59f08"}
 : ${ARTIFACTS:=$(pwd)/assets}
 : ${BUILD:=/usr/src}
 : ${CONFIG:=$(pwd)/config}