diff --git a/app/services/qualys_service.py b/app/services/qualys_service.py
index 68e36c6..1468372 100644
--- a/app/services/qualys_service.py
+++ b/app/services/qualys_service.py
@@ -588,7 +588,7 @@ def _refresh_all_agents_impl(db):
         if last_id:
             criteria.append({"field": "id", "operator": "GREATER", "value": str(last_id)})
         payload = {"ServiceRequest": {
-            "preferences": {"limitResults": 500},
+            "preferences": {"limitResults": 250},
             "filters": {"Criteria": criteria}
         }}
         try: