diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c19a5b1..e9bcb5a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        php: ['8.3', '8.4']
+        php: ['8.3', '8.4', '8.5']
         dependency-version: [ prefer-stable ]
         parallel: [ '', '--parallel' ]