diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 15131be..59bb5a3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,6 +20,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
     steps:
       - name: Dump matrix context
         env: