diff --git a/CHANGELOG.md b/CHANGELOG.md
index 173a7516..9716d687 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [4.0.0](https://github.com/OctopusDeploy/install-octopus-cli-action/compare/v3.1.4...v4.0.0) (2025-12-14)
+
+
+### ⚠ BREAKING CHANGES
+
+* Update node to node 24 ([#586](https://github.com/OctopusDeploy/install-octopus-cli-action/issues/586))
+
+### Features
+
+* Update node to node 24 ([#586](https://github.com/OctopusDeploy/install-octopus-cli-action/issues/586)) ([e805a3e](https://github.com/OctopusDeploy/install-octopus-cli-action/commit/e805a3e7ec6af3a030bdf8744b64ff05400d7031))
+
 ## [3.1.4](https://github.com/OctopusDeploy/install-octopus-cli-action/compare/v3.1.3...v3.1.4) (2025-12-10)
 
 
diff --git a/README.md b/README.md
index 7492dfd9..288c8faf 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ To install the latest version (i.e. `*` or `latest`) of the Octopus CLI:
 
 ```yml
 - name: Install Octopus CLI 🐙
-  uses: OctopusDeploy/install-octopus-cli-action@v3
+  uses: OctopusDeploy/install-octopus-cli-action@v4
   with:
     version: '*'
 ```
@@ -32,7 +32,7 @@ To install a specific version of the Octopus CLI:
 
 ```yml
 - name: Install Octopus CLI 🐙
-  uses: OctopusDeploy/install-octopus-cli-action@v3
+  uses: OctopusDeploy/install-octopus-cli-action@v4
   with:
     version: 0.8.0
 ```
@@ -41,7 +41,7 @@ Here's an example of invoking the `account list` command after installing the Oc
 
 ```yml
 - name: Install Octopus CLI 🐙
-  uses: OctopusDeploy/install-octopus-cli-action@v3
+  uses: OctopusDeploy/install-octopus-cli-action@v4
   with:
     version: 0.8.0
 - name: list-octopusdeploy-accounts
diff --git a/package-lock.json b/package-lock.json
index 12fb99fa..657ca3b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "install-octopus-cli-action",
-  "version": "3.1.4",
+  "version": "4.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "install-octopus-cli-action",
-      "version": "3.1.4",
+      "version": "4.0.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@actions/core": "1.11.1",
diff --git a/package.json b/package.json
index aa4ee3ae..79fc54e1 100644
--- a/package.json
+++ b/package.json
@@ -88,5 +88,5 @@
     "postbuild": "ncc build out/main.js -o dist",
     "test": "jest --ci --reporters=default --reporters=jest-junit --passWithNoTests"
   },
-  "version": "3.1.4"
+  "version": "4.0.0"
 }