diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index e2f2e5b..9f1ad3b 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -11,6 +11,9 @@ permissions:
 
 jobs:
   build:
+    strategy:
+      matrix:
+        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
 
     runs-on: ubuntu-latest