diff --git a/rest/src/main/resources/siren/tasks/sendNotificationTask.json b/rest/src/main/resources/siren/tasks/sendNotificationTask.json
index fd502445c..b08c2b28d 100644
--- a/rest/src/main/resources/siren/tasks/sendNotificationTask.json
+++ b/rest/src/main/resources/siren/tasks/sendNotificationTask.json
@@ -13,7 +13,7 @@
     "retryDelaySeconds": 10,
     "responseTimeoutSeconds": 1200,
     "inputTemplate": {},
-    "rateLimitPerFrequency": 2000,
+    "rateLimitPerFrequency": 500,
     "rateLimitFrequencyInSeconds": 1,
     "ownerEmail": "admin@sirenapp.io",
     "backoffScaleFactor": 1