diff --git a/x-pack/plugins/uptime/server/lib/adapters/monitors/__tests__/__snapshots__/elasticsearch_monitors_adapter.test.ts.snap b/x-pack/plugins/uptime/server/lib/adapters/monitors/__tests__/__snapshots__/elasticsearch_monitors_adapter.test.ts.snap
index cebccc17d6f23..a273bf202ade2 100644
--- a/x-pack/plugins/uptime/server/lib/adapters/monitors/__tests__/__snapshots__/elasticsearch_monitors_adapter.test.ts.snap
+++ b/x-pack/plugins/uptime/server/lib/adapters/monitors/__tests__/__snapshots__/elasticsearch_monitors_adapter.test.ts.snap
@@ -23,7 +23,7 @@ Array [
           },
           "date_histogram": Object {
             "field": "@timestamp",
-            "interval": "36000ms",
+            "fixed_interval": "36000ms",
           },
         },
       },
@@ -81,7 +81,7 @@ Array [
           },
           "date_histogram": Object {
             "field": "@timestamp",
-            "interval": "36000ms",
+            "fixed_interval": "36000ms",
           },
         },
       },
diff --git a/x-pack/plugins/uptime/server/lib/adapters/monitors/elasticsearch_monitors_adapter.ts b/x-pack/plugins/uptime/server/lib/adapters/monitors/elasticsearch_monitors_adapter.ts
index 9dc153e2e54ae..7b4af0ae89620 100644
--- a/x-pack/plugins/uptime/server/lib/adapters/monitors/elasticsearch_monitors_adapter.ts
+++ b/x-pack/plugins/uptime/server/lib/adapters/monitors/elasticsearch_monitors_adapter.ts
@@ -82,7 +82,7 @@ export class ElasticsearchMonitorsAdapter implements UMMonitorsAdapter {
           timeseries: {
             date_histogram: {
               field: '@timestamp',
-              interval: getHistogramInterval(dateRangeStart, dateRangeEnd),
+              fixed_interval: getHistogramInterval(dateRangeStart, dateRangeEnd),
             },
             aggs: {
               status: { terms: { field: 'monitor.status', size: 2, shard_size: 2 } },
@@ -297,7 +297,7 @@ export class ElasticsearchMonitorsAdapter implements UMMonitorsAdapter {
               histogram: {
                 date_histogram: {
                   field: '@timestamp',
-                  interval: getHistogramInterval(dateRangeStart, dateRangeEnd),
+                  fixed_interval: getHistogramInterval(dateRangeStart, dateRangeEnd),
                   missing: 0,
                 },
                 aggs: {
diff --git a/x-pack/plugins/uptime/server/lib/adapters/pings/elasticsearch_pings_adapter.ts b/x-pack/plugins/uptime/server/lib/adapters/pings/elasticsearch_pings_adapter.ts
index 4e69e4a4291ae..511bb791654db 100644
--- a/x-pack/plugins/uptime/server/lib/adapters/pings/elasticsearch_pings_adapter.ts
+++ b/x-pack/plugins/uptime/server/lib/adapters/pings/elasticsearch_pings_adapter.ts
@@ -179,7 +179,7 @@ export class ElasticsearchPingsAdapter implements UMPingsAdapter {
           timeseries: {
             date_histogram: {
               field: '@timestamp',
-              interval: getHistogramInterval(dateRangeStart, dateRangeEnd),
+              fixed_interval: getHistogramInterval(dateRangeStart, dateRangeEnd),
             },
             aggs: {
               down: {