diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6738c9d..5d24b96 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -19,7 +19,7 @@ jobs:
       strategy:
         fail-fast: true
         matrix:
-          php: ['7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
+          php: ['7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4', '8.5']
           stability: [prefer-stable]
 
       name: PHP ${{ matrix.php }} - ${{ matrix.stability }}