diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index cfd73af..08c393d 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        php-versions: ['7.3', '7.4', '8.0', '8.1', '8.2']
+        php-versions: ['7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
 
     steps:
     - name: Checkout code