diff --git a/README.rst b/README.rst
index de0d6fe..2d6607c 100644
--- a/README.rst
+++ b/README.rst
@@ -169,3 +169,15 @@
   prometheus:
     server:
       is_container: false
+
+Set alerta housekeeping default timeouts
+----------------------------------------
+
+.. code-block:: yaml
+
+parameters:
+  prometheus:
+    alerta:
+      housekeeping:
+        default_expired_delete_hrs: 2160
+        default_info_delete_hrs: 2160