diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 652c5bc..6eba466 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,6 +15,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
         dependency-version:
           # - prefer-lowest
           - prefer-stable