diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a437a6ff6..35572ef6b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -26,6 +26,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
 
     env:
       PHAN_ALLOW_XDEBUG: 0