diff --git a/jobrunner/cli/local_run.py b/jobrunner/cli/local_run.py
index 68d6081c..bdef4437 100644
--- a/jobrunner/cli/local_run.py
+++ b/jobrunner/cli/local_run.py
@@ -259,6 +259,7 @@ def create_and_run_jobs(
     config.USING_DUMMY_DATA_BACKEND = True
     config.CLEAN_UP_DOCKER_OBJECTS = clean_up_docker_objects
     config.MAX_WORKERS = concurrency
+    config.MAX_DB_WORKERS = concurrency
     config.DEFAULT_JOB_MEMORY_LIMIT = memory
     config.DEFAULT_JOB_CPU_COUNT = cpus