diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fed6c3c946733a2d773773de40a670bfdaea9123..fd50a211a4e4f837cb3a33e9b7d06112835316a7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ before_script:
   - module add  python/3.6.1-2-anaconda
   - pip install --user pytest-pythonpath==0.7.1 pytest-cov==2.5.1
   - module load nextflow/0.31.0
-  - ulimit -Ss unlimited
+  - ulimit -a unlimited
   - ln -s /project/shared/bicf_workflow_ref/workflow_testdata/chipseq/*fastq.gz test_data/
 
 stages: