diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6ccd13c..a909fd5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,6 +54,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
         dependency-versions:
           - "lowest"
           - "highest"