diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 81d58d772..39f79e394 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -73,7 +73,7 @@ jobs:
     - name: Test in-tree builds
       if: contains( matrix.gcc_v, '9') # Only test one compiler on each platform
       run: |
-          cmake .
+          cmake -DCMAKE_MAXIMUM_RANK=4 .
           cmake --build .
           cmake --build . --target test