diff --git a/.github/workflows/on_pull_request.yml b/.github/workflows/on_pull_request.yml
index 2997032..02aa874 100644
--- a/.github/workflows/on_pull_request.yml
+++ b/.github/workflows/on_pull_request.yml
@@ -18,6 +18,7 @@ jobs:
           - 8.0
           - 8.1
           - 8.2
+          - 8.3
         composer: 
           - 2  
     name: Test - php:${{ matrix.php }}; composer:${{ matrix.composer }}