diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2327f2eb3d2435fb595922e29acb106fc7b34965..1c6691760f42da9d2d7d194272f2da6bf85af9b1 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -72,7 +72,7 @@ dedupData:
 makeBigWig
   stage: unit
   script:
-  - singularity run 'docker://bicf/deeptools3.3:2.0.0' bamCoverage -b ./test_data/bam/small/Q-Y5JA_1M.se.sorted.deduped.bam -o ./test_data/bam/small/Q-Y5JA_1M.se.bw
+  - singularity run 'docker://bicf/deeptools3.3:2.0.0' bamCoverage -p `nproc` -b ./test_data/bam/small/Q-Y5JA_1M.se.sorted.deduped.bam -o ./test_data/bam/small/Q-Y5JA_1M.se.bw
   - pytest -m makeBigWig
 
 fastqc: