diff --git a/api/handlers/dataexplorerhandler.py b/api/handlers/dataexplorerhandler.py
index 70478c24803322f5715bbb1cee08b59b8a82040f..f00775ffff7446f56ef9954272a39f45d1f75e4b 100644
--- a/api/handlers/dataexplorerhandler.py
+++ b/api/handlers/dataexplorerhandler.py
@@ -61,16 +61,11 @@ FACET_QUERY = {
                     }
                 },
                 "session.timestamp" : {
-                    "date_histogram" : {
-                        "field" : "session.timestamp",
-                        "interval" : "month"
-                    }
+                    "stats" : { "field" : "session.timestamp"}
+
                 },
                 "session.created" : {
-                    "date_histogram" : {
-                        "field" : "session.created",
-                        "interval" : "month"
-                    }
+                    "stats" : { "field" : "session.created"}
                 }
             }
         },