diff --git a/ui/src/types/series.ts b/ui/src/types/series.ts
index 7e2e46246e..422067b448 100644
--- a/ui/src/types/series.ts
+++ b/ui/src/types/series.ts
@@ -1,4 +1,4 @@
-export type TimeSeriesValue = string | number | Date | null
+export type TimeSeriesValue = string | number | null
 
 export interface TimeSeriesSeries {
   name: string
@@ -30,6 +30,6 @@ export interface TimeSeriesServerResponse {
 }
 
 export interface TimeSeries {
-  time: TimeSeriesValue[]
-  values: TimeSeriesValue[][]
+  time: TimeSeriesValue
+  values: TimeSeriesValue[]
 }
diff --git a/ui/src/utils/groupByTimeSeriesTransform.ts b/ui/src/utils/groupByTimeSeriesTransform.ts
index 828d4b7489..9519b1fb9a 100644
--- a/ui/src/utils/groupByTimeSeriesTransform.ts
+++ b/ui/src/utils/groupByTimeSeriesTransform.ts
@@ -14,6 +14,7 @@ import {
   TimeSeriesSeries,
   TimeSeriesValue,
   TimeSeriesSuccessfulResult,
+  TimeSeries,
 } from 'src/types/series'
 import {get} from 'src/utils/wrappers'
 
@@ -49,11 +50,6 @@ interface Label {
   responseIndex: number
 }
 
-interface TimeSeries {
-  time: TimeSeriesValue
-  values: TimeSeriesValue[]
-}
-
 const flattenGroupBySeries = (
   results: TimeSeriesSuccessfulResult[],
   responseIndex: number,