diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 671f60d..e8ca429 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -65,6 +65,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
         dependencies:
           - "lowest"
           - "highest"