diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index 2e60e570..8a1e73a3 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: [ '8.1', '8.2', '8.3' ]
+        php-versions: [ '8.1', '8.2', '8.3', '8.4' ]
     steps:
       - name: "Checkout"
         uses: "actions/checkout@v4"