diff --git a/elasticsearch/server/curator.yml b/elasticsearch/server/curator.yml
index e4e5ace..fe7383d 100644
--- a/elasticsearch/server/curator.yml
+++ b/elasticsearch/server/curator.yml
@@ -12,41 +12,33 @@
         actions:
           - action: delete_indices
             description: >-
-                Delete indices older than ${_param:elasticsearch_curator_retention_period} days (based on index name).
+                Delete indices older than ${_param:elasticsearch_curator_retention_period} days (based on index creation date).
             options:
               ignore_empty_list: True
-              timeout_override:
               continue_if_exception: False
               disable_action: False
             filters:
             - filtertype: pattern
               kind: regex
               value: "${_param:elasticsearch_curator_indices_pattern}"
-              exclude:
             - filtertype: age
-              source: name
+              source: creation_date
               direction: older
-              timestring: '%Y.%m.%d'
               unit: days
               unit_count: ${_param:elasticsearch_curator_retention_period}
-              exclude:
           - action: delete_indices
             description: >-
-                Delete indices older than ${_param:elasticsearch_curator_retention_period} days (based on index name).
+                Delete indices older than ${_param:elasticsearch_curator_retention_period} days (based on index creation date).
             options:
               ignore_empty_list: True
-              timeout_override:
               continue_if_exception: False
               disable_action: False
             filters:
             - filtertype: pattern
               kind: regex
               value: "^events_.*$"
-              exclude:
             - filtertype: age
-              source: name
+              source: creation_date
               direction: older
-              timestring: '%Y-%m-%d'
               unit: days
               unit_count: ${_param:elasticsearch_curator_retention_period}
-              exclude:
\ No newline at end of file