diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index adb39a3..10fdd38 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -45,6 +45,7 @@ jobs:
                     - '8.1'
                     - '8.2'
                     - '8.3'
+                    - '8.4'
                 dependencies:
                     - 'highest'
                     - 'lowest'