diff --git a/.github/workflows/R-tests.yml b/.github/workflows/R-tests.yml
index 5904a80..4248ff5 100644
--- a/.github/workflows/R-tests.yml
+++ b/.github/workflows/R-tests.yml
@@ -10,15 +10,19 @@ jobs:
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v3
+#      - uses: actions/checkout@v3
       - uses: r-lib/actions/setup-r@v2
         with:
           use-public-rspm: true
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: any::testthat
-          needs: pr-document
+          extra-packages: |
+            any::testthat
+            any::devtools
+#          needs: pr-document
+      - name: install package
+        run: devtools::install_package("brandmaier/semtree")
           
       - name: run test
         run: testthat::test_dir("tests/testthat/")