diff --git a/Jenkinsfile.ci b/Jenkinsfile.ci
index 54e9a68ac..7e75dbb20 100644
--- a/Jenkinsfile.ci
+++ b/Jenkinsfile.ci
@@ -99,7 +99,7 @@ def test(options=[:]) {
         if (options.useRunner) {
             sh "PYTHONASYNCIODEBUG='0' $options.python runner.py --pytest \"$options.python -m pytest -v\" --dir $options.testDir --output \"$options.resFile\" --test-only-slice \"$options.testOnlySlice\""
         } else {
-            sh "$options.python -m pytest -v -n auto --junitxml=$options.resFile $options.testDir"
+            sh "$options.python -m pytest -v --junitxml=$options.resFile $options.testDir"
         }
     }
     finally {