diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a81d169..20bc29b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: ['8.1', '8.2', '8.3']
+        php: ['8.1', '8.2', '8.3', '8.4']
         deps: [highest]
 
         include: