diff --git a/CHANGES.md b/CHANGES.md
index f7d51d30..263e96ec 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,13 @@ Notable changes between versions.
 
 ## Latest
 
+### Fedora CoreOS
+
+* Update Butane Config version from v1.4.0 to v1.5.0
+  * Require any custom Butane [snippets](https://typhoon.psdn.io/advanced/customization/#hosts) update to v1.5.0
+* Require Fedora CoreOS `37.20230303.3.0` or newer (with ignition v2.15)
+* Require poseidon/ct v0.13+ (**action required**)
+
 ## v1.27.1
 
 * Kubernetes [v1.27.1](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#v1271)
diff --git a/aws/fedora-coreos/kubernetes/butane/controller.yaml b/aws/fedora-coreos/kubernetes/butane/controller.yaml
index 21c77007..f51582a5 100644
--- a/aws/fedora-coreos/kubernetes/butane/controller.yaml
+++ b/aws/fedora-coreos/kubernetes/butane/controller.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: etcd-member.service
diff --git a/aws/fedora-coreos/kubernetes/versions.tf b/aws/fedora-coreos/kubernetes/versions.tf
index d0e7a259..2f6f02b6 100644
--- a/aws/fedora-coreos/kubernetes/versions.tf
+++ b/aws/fedora-coreos/kubernetes/versions.tf
@@ -7,7 +7,7 @@ terraform {
     null = ">= 2.1"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
   }
 }
diff --git a/aws/fedora-coreos/kubernetes/workers/butane/worker.yaml b/aws/fedora-coreos/kubernetes/workers/butane/worker.yaml
index 4233e998..eb4ccb72 100644
--- a/aws/fedora-coreos/kubernetes/workers/butane/worker.yaml
+++ b/aws/fedora-coreos/kubernetes/workers/butane/worker.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: containerd.service
diff --git a/aws/fedora-coreos/kubernetes/workers/versions.tf b/aws/fedora-coreos/kubernetes/workers/versions.tf
index 7dd74a5a..0f771d92 100644
--- a/aws/fedora-coreos/kubernetes/workers/versions.tf
+++ b/aws/fedora-coreos/kubernetes/workers/versions.tf
@@ -6,7 +6,7 @@ terraform {
     aws = ">= 2.23, <= 5.0"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
   }
 }
diff --git a/azure/fedora-coreos/kubernetes/butane/controller.yaml b/azure/fedora-coreos/kubernetes/butane/controller.yaml
index ac85b2e2..a4e5a83d 100644
--- a/azure/fedora-coreos/kubernetes/butane/controller.yaml
+++ b/azure/fedora-coreos/kubernetes/butane/controller.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: etcd-member.service
diff --git a/azure/fedora-coreos/kubernetes/versions.tf b/azure/fedora-coreos/kubernetes/versions.tf
index 8e6044f1..2cc5ec75 100644
--- a/azure/fedora-coreos/kubernetes/versions.tf
+++ b/azure/fedora-coreos/kubernetes/versions.tf
@@ -7,7 +7,7 @@ terraform {
     null    = ">= 2.1"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
   }
 }
diff --git a/azure/fedora-coreos/kubernetes/workers/butane/worker.yaml b/azure/fedora-coreos/kubernetes/workers/butane/worker.yaml
index b7edc41a..47b85bd3 100644
--- a/azure/fedora-coreos/kubernetes/workers/butane/worker.yaml
+++ b/azure/fedora-coreos/kubernetes/workers/butane/worker.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: containerd.service
diff --git a/azure/fedora-coreos/kubernetes/workers/versions.tf b/azure/fedora-coreos/kubernetes/workers/versions.tf
index 15b435b4..4ca84265 100644
--- a/azure/fedora-coreos/kubernetes/workers/versions.tf
+++ b/azure/fedora-coreos/kubernetes/workers/versions.tf
@@ -6,7 +6,7 @@ terraform {
     azurerm = ">= 2.8, < 4.0"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
   }
 }
diff --git a/bare-metal/fedora-coreos/kubernetes/butane/controller.yaml b/bare-metal/fedora-coreos/kubernetes/butane/controller.yaml
index fa97130e..e5cdd542 100644
--- a/bare-metal/fedora-coreos/kubernetes/butane/controller.yaml
+++ b/bare-metal/fedora-coreos/kubernetes/butane/controller.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: etcd-member.service
diff --git a/bare-metal/fedora-coreos/kubernetes/versions.tf b/bare-metal/fedora-coreos/kubernetes/versions.tf
index 4ab5a11e..9471abf7 100644
--- a/bare-metal/fedora-coreos/kubernetes/versions.tf
+++ b/bare-metal/fedora-coreos/kubernetes/versions.tf
@@ -6,7 +6,7 @@ terraform {
     null = ">= 2.1"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
     matchbox = {
       source  = "poseidon/matchbox"
diff --git a/bare-metal/fedora-coreos/kubernetes/worker/butane/worker.yaml b/bare-metal/fedora-coreos/kubernetes/worker/butane/worker.yaml
index eda871a6..15216400 100644
--- a/bare-metal/fedora-coreos/kubernetes/worker/butane/worker.yaml
+++ b/bare-metal/fedora-coreos/kubernetes/worker/butane/worker.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: containerd.service
diff --git a/bare-metal/fedora-coreos/kubernetes/worker/versions.tf b/bare-metal/fedora-coreos/kubernetes/worker/versions.tf
index 1d149448..881c372e 100644
--- a/bare-metal/fedora-coreos/kubernetes/worker/versions.tf
+++ b/bare-metal/fedora-coreos/kubernetes/worker/versions.tf
@@ -6,7 +6,7 @@ terraform {
     null = ">= 2.1"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
     matchbox = {
       source  = "poseidon/matchbox"
diff --git a/digital-ocean/fedora-coreos/kubernetes/butane/controller.yaml b/digital-ocean/fedora-coreos/kubernetes/butane/controller.yaml
index 8e860fb7..67cfb85d 100644
--- a/digital-ocean/fedora-coreos/kubernetes/butane/controller.yaml
+++ b/digital-ocean/fedora-coreos/kubernetes/butane/controller.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: etcd-member.service
diff --git a/digital-ocean/fedora-coreos/kubernetes/butane/worker.yaml b/digital-ocean/fedora-coreos/kubernetes/butane/worker.yaml
index 24df1218..1fe56c58 100644
--- a/digital-ocean/fedora-coreos/kubernetes/butane/worker.yaml
+++ b/digital-ocean/fedora-coreos/kubernetes/butane/worker.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: containerd.service
diff --git a/docs/addons/fleetlock.md b/docs/addons/fleetlock.md
index 9c2cf566..80b7aa5f 100644
--- a/docs/addons/fleetlock.md
+++ b/docs/addons/fleetlock.md
@@ -6,7 +6,7 @@ Declare a Zincati `fleet_lock` strategy when provisioning Fedora CoreOS nodes vi
 
 ```yaml
 variant: fcos
-version: 1.1.0
+version: 1.5.0
 storage:
   files:
     - path: /etc/zincati/config.d/55-update-strategy.toml
diff --git a/docs/advanced/customization.md b/docs/advanced/customization.md
index 0d35d4cd..93fdb285 100644
--- a/docs/advanced/customization.md
+++ b/docs/advanced/customization.md
@@ -38,7 +38,7 @@ For example, ensure an `/opt/hello` file is created with permissions 0644 before
     ```yaml
     # custom-files.yaml
     variant: fcos
-    version: 1.4.0
+    version: 1.5.0
     storage:
       files:
         - path: /opt/hello
@@ -70,7 +70,7 @@ Or ensure a systemd unit `hello.service` is created.
     ```yaml
     # custom-units.yaml
     variant: fcos
-    version: 1.4.0
+    version: 1.5.0
     systemd:
       units:
         - name: hello.service
@@ -164,7 +164,7 @@ To set an alternative etcd image or Kubelet image, use a snippet to set a system
     ```yaml
     # kubelet-image-override.yaml
     variant: fcos           <- remove for Flatcar Linux
-    version: 1.4.0          <- remove for Flatcar Linux
+    version: 1.5.0          <- remove for Flatcar Linux
     systemd:
       units:
         - name: kubelet.service
@@ -180,7 +180,7 @@ To set an alternative etcd image or Kubelet image, use a snippet to set a system
     ```yaml
     # etcd-image-override.yaml
     variant: fcos           <- remove for Flatcar Linux
-    version: 1.4.0          <- remove for Flatcar Linux
+    version: 1.5.0          <- remove for Flatcar Linux
     systemd:
       units:
         - name: etcd-member.service
diff --git a/docs/fedora-coreos/aws.md b/docs/fedora-coreos/aws.md
index 33c1bb8b..2738c19d 100644
--- a/docs/fedora-coreos/aws.md
+++ b/docs/fedora-coreos/aws.md
@@ -51,11 +51,11 @@ terraform {
   required_providers {
     ct = {
       source  = "poseidon/ct"
-      version = "0.11.0"
+      version = "0.13.0"
     }
     aws = {
       source = "hashicorp/aws"
-      version = "4.31.0"
+      version = "4.61.0"
     }
   }
 }
diff --git a/docs/fedora-coreos/azure.md b/docs/fedora-coreos/azure.md
index 5e0b8ed7..f8d8876f 100644
--- a/docs/fedora-coreos/azure.md
+++ b/docs/fedora-coreos/azure.md
@@ -48,11 +48,11 @@ terraform {
   required_providers {
     ct = {
       source  = "poseidon/ct"
-      version = "0.11.0"
+      version = "0.13.0"
     }
     azurerm = {
       source = "hashicorp/azurerm"
-      version = "3.23.0"
+      version = "3.50.0"
     }
   }
 }
diff --git a/docs/fedora-coreos/bare-metal.md b/docs/fedora-coreos/bare-metal.md
index 15d5a89d..8b3b5243 100644
--- a/docs/fedora-coreos/bare-metal.md
+++ b/docs/fedora-coreos/bare-metal.md
@@ -138,7 +138,7 @@ terraform {
   required_providers {
     ct = {
       source  = "poseidon/ct"
-      version = "0.11.0"
+      version = "0.13.0"
     }
     matchbox = {
       source = "poseidon/matchbox"
diff --git a/docs/fedora-coreos/digitalocean.md b/docs/fedora-coreos/digitalocean.md
index 7e7752f3..727bdc12 100644
--- a/docs/fedora-coreos/digitalocean.md
+++ b/docs/fedora-coreos/digitalocean.md
@@ -51,11 +51,11 @@ terraform {
   required_providers {
     ct = {
       source  = "poseidon/ct"
-      version = "0.11.0"
+      version = "0.13.0"
     }
     digitalocean = {
       source = "digitalocean/digitalocean"
-      version = "2.22.3"
+      version = "2.27.1"
     }
   }
 }
diff --git a/docs/fedora-coreos/google-cloud.md b/docs/fedora-coreos/google-cloud.md
index 6f46a6f6..19929feb 100644
--- a/docs/fedora-coreos/google-cloud.md
+++ b/docs/fedora-coreos/google-cloud.md
@@ -52,11 +52,11 @@ terraform {
   required_providers {
     ct = {
       source  = "poseidon/ct"
-      version = "0.11.0"
+      version = "0.13.0"
     }
     google = {
       source = "hashicorp/google"
-      version = "4.37.0"
+      version = "4.59.0"
     }
   }
 }
diff --git a/docs/flatcar-linux/aws.md b/docs/flatcar-linux/aws.md
index 1233c8ea..027b7ed3 100644
--- a/docs/flatcar-linux/aws.md
+++ b/docs/flatcar-linux/aws.md
@@ -55,7 +55,7 @@ terraform {
     }
     aws = {
       source = "hashicorp/aws"
-      version = "4.31.0"
+      version = "4.61.0"
     }
   }
 }
diff --git a/docs/flatcar-linux/azure.md b/docs/flatcar-linux/azure.md
index 9e692f50..1c555914 100644
--- a/docs/flatcar-linux/azure.md
+++ b/docs/flatcar-linux/azure.md
@@ -52,7 +52,7 @@ terraform {
     }
     azurerm = {
       source = "hashicorp/azurerm"
-      version = "3.23.0"
+      version = "3.50.0"
     }
   }
 }
diff --git a/docs/flatcar-linux/digitalocean.md b/docs/flatcar-linux/digitalocean.md
index 33666dac..45bdff22 100644
--- a/docs/flatcar-linux/digitalocean.md
+++ b/docs/flatcar-linux/digitalocean.md
@@ -55,7 +55,7 @@ terraform {
     }
     digitalocean = {
       source = "digitalocean/digitalocean"
-      version = "2.22.3"
+      version = "2.27.1"
     }
   }
 }
diff --git a/docs/flatcar-linux/google-cloud.md b/docs/flatcar-linux/google-cloud.md
index b70e9bde..5dfc72e2 100644
--- a/docs/flatcar-linux/google-cloud.md
+++ b/docs/flatcar-linux/google-cloud.md
@@ -56,7 +56,7 @@ terraform {
     }
     google = {
       source = "hashicorp/google"
-      version = "4.37.0"
+      version = "4.59.0"
     }
   }
 }
diff --git a/google-cloud/fedora-coreos/kubernetes/butane/controller.yaml b/google-cloud/fedora-coreos/kubernetes/butane/controller.yaml
index 34f5d2cb..3bba5ead 100644
--- a/google-cloud/fedora-coreos/kubernetes/butane/controller.yaml
+++ b/google-cloud/fedora-coreos/kubernetes/butane/controller.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: etcd-member.service
diff --git a/google-cloud/fedora-coreos/kubernetes/versions.tf b/google-cloud/fedora-coreos/kubernetes/versions.tf
index 19e7f81c..453ac478 100644
--- a/google-cloud/fedora-coreos/kubernetes/versions.tf
+++ b/google-cloud/fedora-coreos/kubernetes/versions.tf
@@ -7,7 +7,7 @@ terraform {
     null   = ">= 2.1"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
   }
 }
diff --git a/google-cloud/fedora-coreos/kubernetes/workers/butane/worker.yaml b/google-cloud/fedora-coreos/kubernetes/workers/butane/worker.yaml
index 1107df45..b280f57a 100644
--- a/google-cloud/fedora-coreos/kubernetes/workers/butane/worker.yaml
+++ b/google-cloud/fedora-coreos/kubernetes/workers/butane/worker.yaml
@@ -1,6 +1,6 @@
 ---
 variant: fcos
-version: 1.4.0
+version: 1.5.0
 systemd:
   units:
     - name: containerd.service
diff --git a/google-cloud/fedora-coreos/kubernetes/workers/versions.tf b/google-cloud/fedora-coreos/kubernetes/workers/versions.tf
index 791cb6d5..705e20bd 100644
--- a/google-cloud/fedora-coreos/kubernetes/workers/versions.tf
+++ b/google-cloud/fedora-coreos/kubernetes/workers/versions.tf
@@ -6,7 +6,7 @@ terraform {
     google = ">= 2.19, < 5.0"
     ct = {
       source  = "poseidon/ct"
-      version = "~> 0.9"
+      version = "~> 0.13"
     }
   }
 }