diff --git a/redfish-core/lib/event_service.hpp b/redfish-core/lib/event_service.hpp
index d473c8e..8826409 100644
--- a/redfish-core/lib/event_service.hpp
+++ b/redfish-core/lib/event_service.hpp
@@ -142,12 +142,12 @@
 
         if (retryInterval)
         {
-            // Supported range [30 - 180]
-            if ((*retryInterval < 30) || (*retryInterval > 180))
+            // Supported range [5 - 180]
+            if ((*retryInterval < 5) || (*retryInterval > 180))
             {
                 messages::queryParameterOutOfRange(
                     asyncResp->res, std::to_string(*retryInterval),
-                    "DeliveryRetryIntervalSeconds", "[30-180]");
+                    "DeliveryRetryIntervalSeconds", "[5-180]");
             }
             else
             {