diff --git a/build.conf.amd64 b/build.conf.amd64
index 25412ec2..e7d608d3 100644
--- a/build.conf.amd64
+++ b/build.conf.amd64
@@ -1,7 +1,7 @@
 DAPPER_BASE=ubuntu:16.04
 TOOLCHAIN= #empty
 
-COMPILED_KERNEL_URL=https://github.com/rancher/os-kernel/releases/download/Ubuntu-4.2.0-28.33-rancher/linux-4.2.8-ckt3-rancher-x86.tar.gz
+COMPILED_KERNEL_URL=https://github.com/rancher/os-kernel/releases/download/Ubuntu-4.2.0-34.39-rancher/linux-4.2.8-ckt4-rancher-x86.tar.gz
 DOCKER_BINARY_URL=https://get.docker.com/builds/Linux/x86_64/docker-1.10.3
 OS_RELEASES_YML=https://releases.rancher.com/os/releases.yml
 VBOX_MODULES_URL=https://github.com/rancher/os-vbox/releases/download/v0.0.2/vbox-modules.tar.gz