diff --git a/.github/workflows/setup.yml b/.github/workflows/setup.yml
index 439d67b..d387e3e 100644
--- a/.github/workflows/setup.yml
+++ b/.github/workflows/setup.yml
@@ -11,6 +11,7 @@ jobs:
   setup:
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/checkout@v4
       - uses: eWaterCycle/setup-apptainer@v2
         with:
           apptainer-version: 1.3.0