diff --git a/.github/workflows/test_pipeline.yml b/.github/workflows/test_pipeline.yml
index 281f0f1..5c83ad7 100644
--- a/.github/workflows/test_pipeline.yml
+++ b/.github/workflows/test_pipeline.yml
@@ -91,7 +91,7 @@ jobs:
         run: |
           source $CONDA/bin/activate
           conda activate qcd_env_test
-          snakemake -s QCD.smk -p --use-conda --use-apptainer --conda-frontend conda --configfile .test/config/config.yaml --latency-wait 1000 --cores 4 
+          snakemake -s QCD.smk -p --use-conda --use-singularity --conda-frontend conda --configfile .test/config/config.yaml --latency-wait 1000 --cores 4 
         # uses: snakemake/snakemake-github-action@v1.25.1
         # with:
         #   directory: '.'