diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 8dca656..f6a54a4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: [7.2, 7.3, 7.4, 8.0, 8.1]
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3']
         stability: [prefer-stable]
 
     name: PHP ${{ matrix.php }} - ${{ matrix.stability }}