diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 895b195..0184000 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -24,6 +24,9 @@ jobs:
 
       - name: Setup
         uses: eddelbuettel/github-actions/r-ci@master
+        with:
+          dev_version: 'TRUE'
+          backend: 'RAPT'
 
       - name: Dependencies
         run: ./run.sh install_deps