diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2add7a..e4ecd03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [4.0.0](https://github.com/OctopusDeploy/push-package-action/compare/v3.2.5...v4.0.0) (2025-12-09)
+
+
+### ⚠ BREAKING CHANGES
+
+* Migrate to node 24 ([#513](https://github.com/OctopusDeploy/push-package-action/issues/513))
+
+### Features
+
+* Migrate to node 24 ([#513](https://github.com/OctopusDeploy/push-package-action/issues/513)) ([cf06817](https://github.com/OctopusDeploy/push-package-action/commit/cf06817b694b6df558796a1946c6c465839a992d))
+
 ## [3.2.5](https://github.com/OctopusDeploy/push-package-action/compare/v3.2.4...v3.2.5) (2025-07-29)
 
 
diff --git a/README.md b/README.md
index dfce6bc..07e9dc1 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ steps:
   - uses: actions/checkout@v3
 
   - name: Push a package to Octopus Deploy 🐙
-    uses: OctopusDeploy/push-package-action@v3
+    uses: OctopusDeploy/push-package-action@v4
     env:
       OCTOPUS_URL: ${{ secrets.SERVER }}
       OCTOPUS_API_KEY: ${{ secrets.API_KEY }}
diff --git a/package-lock.json b/package-lock.json
index e4c4267..0ee8d31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "push-package-action",
-  "version": "3.2.5",
+  "version": "4.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "push-package-action",
-      "version": "3.2.5",
+      "version": "4.0.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@actions/core": "1.11.1",
diff --git a/package.json b/package.json
index 53d5205..a8ca8f5 100644
--- a/package.json
+++ b/package.json
@@ -88,5 +88,5 @@
     "test:unit": "jest --ci --reporters=default --reporters=jest-junit --testPathPattern=__tests__/unit",
     "test:integration": "jest --ci --reporters=default --reporters=jest-junit --testPathPattern=__tests__/integration"
   },
-  "version": "3.2.5"
+  "version": "4.0.0"
 }