diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index e7a35e85..371e033e 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -28,6 +28,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
         dependencies: [highest]
         experimental: [false]
         include:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60141c28..99726be8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Increase phpstan level to 8 with baseline to swallow existing errors ([#673](https://github.com/jsonrainbow/json-schema/pull/673))
 - Add ext-json to composer.json to ensure JSON extension available  ([#759](https://github.com/jsonrainbow/json-schema/pull/759))
 - Add visibility modifiers to class constants ([#757](https://github.com/jsonrainbow/json-schema/pull/757))
+- Include PHP 8.4 in workflow ([#765](https://github.com/jsonrainbow/json-schema/pull/765))
 
 ## [6.0.0] - 2024-07-30
 ### Added