diff --git a/CHANGES.md b/CHANGES.md
index f10ce1e2c..00e729535 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,7 @@ Notable changes between versions.
 * Update Calico from v3.5.0 to v3.5.1
 * Assign priorityClassNames to critical cluster and node components ([#406](https://github.com/poseidon/typhoon/pull/406))
   * Informs node out-of-resource eviction and scheduler preemption and ordering
+* Add a CoreDNS readiness probe ([#410](https://github.com/poseidon/typhoon/pull/410))
 
 #### Bare-Metal
 
diff --git a/aws/container-linux/kubernetes/bootkube.tf b/aws/container-linux/kubernetes/bootkube.tf
index 8ef95bb8d..f21f6c45b 100644
--- a/aws/container-linux/kubernetes/bootkube.tf
+++ b/aws/container-linux/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
diff --git a/aws/fedora-atomic/kubernetes/bootkube.tf b/aws/fedora-atomic/kubernetes/bootkube.tf
index 1377618be..161052138 100644
--- a/aws/fedora-atomic/kubernetes/bootkube.tf
+++ b/aws/fedora-atomic/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
diff --git a/azure/container-linux/kubernetes/bootkube.tf b/azure/container-linux/kubernetes/bootkube.tf
index e7f3d1357..6fa7b6384 100644
--- a/azure/container-linux/kubernetes/bootkube.tf
+++ b/azure/container-linux/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
diff --git a/bare-metal/container-linux/kubernetes/bootkube.tf b/bare-metal/container-linux/kubernetes/bootkube.tf
index afa0a1e26..d407714aa 100644
--- a/bare-metal/container-linux/kubernetes/bootkube.tf
+++ b/bare-metal/container-linux/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name                    = "${var.cluster_name}"
   api_servers                     = ["${var.k8s_domain_name}"]
diff --git a/bare-metal/fedora-atomic/kubernetes/bootkube.tf b/bare-metal/fedora-atomic/kubernetes/bootkube.tf
index 42f164b43..6b184533e 100644
--- a/bare-metal/fedora-atomic/kubernetes/bootkube.tf
+++ b/bare-metal/fedora-atomic/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${var.k8s_domain_name}"]
diff --git a/digital-ocean/container-linux/kubernetes/bootkube.tf b/digital-ocean/container-linux/kubernetes/bootkube.tf
index c67a1bba2..29ea717d7 100644
--- a/digital-ocean/container-linux/kubernetes/bootkube.tf
+++ b/digital-ocean/container-linux/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
diff --git a/digital-ocean/fedora-atomic/kubernetes/bootkube.tf b/digital-ocean/fedora-atomic/kubernetes/bootkube.tf
index 0903b6e55..3c053b97e 100644
--- a/digital-ocean/fedora-atomic/kubernetes/bootkube.tf
+++ b/digital-ocean/fedora-atomic/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
diff --git a/google-cloud/container-linux/kubernetes/bootkube.tf b/google-cloud/container-linux/kubernetes/bootkube.tf
index b5b8d94ec..252f3ea63 100644
--- a/google-cloud/container-linux/kubernetes/bootkube.tf
+++ b/google-cloud/container-linux/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
diff --git a/google-cloud/fedora-atomic/kubernetes/bootkube.tf b/google-cloud/fedora-atomic/kubernetes/bootkube.tf
index c0397cc9a..586e7a21d 100644
--- a/google-cloud/fedora-atomic/kubernetes/bootkube.tf
+++ b/google-cloud/fedora-atomic/kubernetes/bootkube.tf
@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=c5f5aacce974e6961b63b0d3c136cd050083fec3"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=593f0e3655294832122a133c08d0ed5c4f28f9b3"
 
   cluster_name          = "${var.cluster_name}"
   api_servers           = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]