diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a081822..5879ecb 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -21,6 +21,9 @@ jobs:
       matrix:
         version: [ '8.0', '8.1', '8.2', '8.3' ]
         extensions: [ 'pcntl xdebug zip intl bcmath rdkafka pdo_pgsql pdo_mysql gd' ]
+        include:
+          - version: "8.4"
+            extensions: "pcntl zip intl bcmath pdo_pgsql pdo_mysql"
 
     runs-on: ubuntu-latest
 
diff --git a/README.md b/README.md
index 42dcb25..b65e1d7 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,5 @@ alias php80='docker run --rm -it --volume $PWD:/app -w /app ghcr.io/patchlevel/p
 alias php81='docker run --rm -it --volume $PWD:/app -w /app ghcr.io/patchlevel/php:8.1'
 alias php82='docker run --rm -it --volume $PWD:/app -w /app ghcr.io/patchlevel/php:8.2'
 alias php83='docker run --rm -it --volume $PWD:/app -w /app ghcr.io/patchlevel/php:8.3'
+alias php84='docker run --rm -it --volume $PWD:/app -w /app ghcr.io/patchlevel/php:8.4'
 ```
\ No newline at end of file