diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c50c713..cea284c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -88,6 +88,7 @@ jobs:
           - "21.9"
           - "21.10"
           - "21.11"
+          - "21.12"
         dependency-versions:
           - "highest"
     env: