diff --git a/dfir_iris_client/alert.py b/dfir_iris_client/alert.py
index ce2d4ff..0765d41 100644
--- a/dfir_iris_client/alert.py
+++ b/dfir_iris_client/alert.py
@@ -224,10 +224,10 @@ def filter_alerts(self, alert_title: str = None, alert_description: str = None,
             uri += f"&alert_customer_id={alert_customer_id}"
 
         if alert_start_date:
-            uri += f"&alert_start_date={alert_start_date}"
+            uri += f"&source_start_date={alert_start_date}"
 
         if alert_end_date:
-            uri += f"&alert_end_date={alert_end_date}"
+            uri += f"&source_end_date={alert_end_date}"
 
         if alert_assets:
             uri += f"&alert_assets={alert_assets}"