diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9d2d5f5..3d6cc2d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        php: [8.1, 8.2]
+        php: [8.1, 8.2, 8.3]
         dependency-version: [highest, lowest]
 
     steps: