diff --git a/dev-support/flaky-tests/run-flaky-tests.Jenkinsfile b/dev-support/flaky-tests/run-flaky-tests.Jenkinsfile
index 939bc407c7a..bb1227b0a98 100644
--- a/dev-support/flaky-tests/run-flaky-tests.Jenkinsfile
+++ b/dev-support/flaky-tests/run-flaky-tests.Jenkinsfile
@@ -61,7 +61,7 @@ pipeline {
             else
               echo "Skipped gathering machine environment because we couldn't read the script to do so."
             fi
-            mvn package "${mvn_args[@]}" -Dtest="$(cat includes.txt)" -Dmaven.test.redirectTestOutputToFile=true -Dsurefire.firstPartForkCount=1C -Dsurefire.secondPartForkCount=1C
+            mvn -T0.25C package "${mvn_args[@]}" -Dtest="$(cat includes.txt)" -Dmaven.test.redirectTestOutputToFile=true -Dsurefire.firstPartForkCount=0.25C -Dsurefire.secondPartForkCount=0.25C
           else
             echo "set of flaky tests is currently empty."
           fi