diff --git a/CHANGES.md b/CHANGES.md
index 9bcc7f2d..021c20d6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,8 @@ Notable changes between versions.
 
 ## Latest
 
+* Update CoreDNS from v1.6.5 to [v1.6.6](https://coredns.io/2019/12/11/coredns-1.6.6-release/) ([#602](https://github.com/poseidon/typhoon/pull/602))
+
 #### Addons
 
 * Update kube-state-metrics from v1.8.0 to v1.9.0
diff --git a/aws/container-linux/kubernetes/bootstrap.tf b/aws/container-linux/kubernetes/bootstrap.tf
index e178926f..e71c18a9 100644
--- a/aws/container-linux/kubernetes/bootstrap.tf
+++ b/aws/container-linux/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]
diff --git a/aws/fedora-coreos/kubernetes/bootstrap.tf b/aws/fedora-coreos/kubernetes/bootstrap.tf
index 24efc816..b5057999 100644
--- a/aws/fedora-coreos/kubernetes/bootstrap.tf
+++ b/aws/fedora-coreos/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]
diff --git a/azure/container-linux/kubernetes/bootstrap.tf b/azure/container-linux/kubernetes/bootstrap.tf
index 471320b4..78e60f8c 100644
--- a/azure/container-linux/kubernetes/bootstrap.tf
+++ b/azure/container-linux/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name = var.cluster_name
   api_servers  = [format("%s.%s", var.cluster_name, var.dns_zone)]
diff --git a/bare-metal/container-linux/kubernetes/bootstrap.tf b/bare-metal/container-linux/kubernetes/bootstrap.tf
index d4e0430b..5ed52b86 100644
--- a/bare-metal/container-linux/kubernetes/bootstrap.tf
+++ b/bare-metal/container-linux/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name                    = var.cluster_name
   api_servers                     = [var.k8s_domain_name]
diff --git a/bare-metal/fedora-coreos/kubernetes/bootstrap.tf b/bare-metal/fedora-coreos/kubernetes/bootstrap.tf
index 80f4a8ec..9145d4ec 100644
--- a/bare-metal/fedora-coreos/kubernetes/bootstrap.tf
+++ b/bare-metal/fedora-coreos/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name                    = var.cluster_name
   api_servers                     = [var.k8s_domain_name]
diff --git a/digital-ocean/container-linux/kubernetes/bootstrap.tf b/digital-ocean/container-linux/kubernetes/bootstrap.tf
index 45c39961..09f00599 100644
--- a/digital-ocean/container-linux/kubernetes/bootstrap.tf
+++ b/digital-ocean/container-linux/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name = var.cluster_name
   api_servers  = [format("%s.%s", var.cluster_name, var.dns_zone)]
diff --git a/google-cloud/container-linux/kubernetes/bootstrap.tf b/google-cloud/container-linux/kubernetes/bootstrap.tf
index 209e34c9..98e8ace6 100644
--- a/google-cloud/container-linux/kubernetes/bootstrap.tf
+++ b/google-cloud/container-linux/kubernetes/bootstrap.tf
@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=24e5513ee6da4888005aac02101f73fc9e5e829f"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=f021d9cb349737caaa73e00be8ff8057312c6324"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]