diff --git a/helm/bundles/cortex-nova/values.yaml b/helm/bundles/cortex-nova/values.yaml
index 3a14adc76..b59dc157b 100644
--- a/helm/bundles/cortex-nova/values.yaml
+++ b/helm/bundles/cortex-nova/values.yaml
@@ -264,6 +264,7 @@ cortex-knowledge-controllers:
         <<: *cortexMonitoringLabels
         component: nova-knowledge
     openstackDatasourceControllerParallelReconciles: 3
+    prometheusDatasourceControllerParallelReconciles: 2
     enabledControllers:
       - datasource-controllers
       - knowledge-controllers