diff --git a/Dockerfile.dapper b/Dockerfile.dapper
index 373be1d6..5ce4b027 100644
--- a/Dockerfile.dapper
+++ b/Dockerfile.dapper
@@ -78,8 +78,8 @@ ARG OS_AUTOFORMAT=false
 ARG OS_BASE_URL_amd64=https://github.com/rancher/os-base/releases/download/v2018.02.11-1/os-base_amd64.tar.xz
 ARG OS_BASE_URL_arm64=https://github.com/rancher/os-base/releases/download/v2018.02.11-1/os-base_arm64.tar.xz
 
-ARG OS_INITRD_BASE_URL_amd64=https://github.com/rancher/os-initrd-base/releases/download/v2018.02.7-1/os-initrd-base-amd64.tar.gz
-ARG OS_INITRD_BASE_URL_arm64=https://github.com/rancher/os-initrd-base/releases/download/v2018.02.7-1/os-initrd-base-arm64.tar.gz
+ARG OS_INITRD_BASE_URL_amd64=https://github.com/rancher/os-initrd-base/releases/download/v2018.02.11-1/os-initrd-base-amd64.tar.gz
+ARG OS_INITRD_BASE_URL_arm64=https://github.com/rancher/os-initrd-base/releases/download/v2018.02.11-1/os-initrd-base-arm64.tar.gz
 
 ARG SYSTEM_DOCKER_VERSION=17.06-ros6
 ARG SYSTEM_DOCKER_URL_amd64=https://github.com/rancher/os-system-docker/releases/download/${SYSTEM_DOCKER_VERSION}/docker-amd64-${SYSTEM_DOCKER_VERSION}.tgz