diff --git a/optuna_dashboard/_app.py b/optuna_dashboard/_app.py
index 7b58fc54..11e738b1 100644
--- a/optuna_dashboard/_app.py
+++ b/optuna_dashboard/_app.py
@@ -415,13 +415,13 @@ def create_app(storage: BaseStorage, debug: bool = False) -> Bottle:
     @json_api_view
     def tell_trial(study_id: int, trial_id: int) -> BottleViewReturn:
         s = request.json.get("state", None)
-        v = request.json.get("value", None)
+        vs = request.json.get("values", None)
 
         try:
-            value = float(v) if v is not None else v
+            values = [float(v) for v in vs] if vs is not None else vs
         except ValueError:
             response.status = 400  # Bad request
-            return {"reason": "You need to pass float castable value"}
+            return {"reason": "You need to pass float castable values"}
 
         string2State = {
            "Running": TrialState.RUNNING,
@@ -444,7 +444,7 @@ def create_app(storage: BaseStorage, debug: bool = False) -> Bottle:
         study = optuna.load_study(storage=storage, study_name=study_name)
 
         try:
-            study.tell(trial_id, values=value, state=state)
+            study.tell(trial_id, values=values, state=state)
         except Exception as e:
             response.status = 400  # Bad request
             return {"reason": e.args}
diff --git a/optuna_dashboard/ts/action.ts b/optuna_dashboard/ts/action.ts
index b8d77118..c862eb9c 100644
--- a/optuna_dashboard/ts/action.ts
+++ b/optuna_dashboard/ts/action.ts
@@ -270,10 +270,10 @@ export const actionCreator = () => {
     studyId: number,
     trialId: number,
     state: TrialState,
-    value?: string
+    values?: string[]
   ) => {
-    const message = value === undefined ? `id=${trialId}, state=${state}` : `id=${trialId}, state=${state}, value=${value}`
-    tellTrialAPI(studyId, trialId, state, value)
+    const message = values === undefined ? `id=${trialId}, state=${state}` : `id=${trialId}, state=${state}, values=${values}`
+    tellTrialAPI(studyId, trialId, state, values)
       .then(() => {
         enqueueSnackbar(`Success to update trial (${message})`, {
           variant: "success",
diff --git a/optuna_dashboard/ts/apiClient.ts b/optuna_dashboard/ts/apiClient.ts
index 7ae68bd8..f5ccf407 100644
--- a/optuna_dashboard/ts/apiClient.ts
+++ b/optuna_dashboard/ts/apiClient.ts
@@ -221,11 +221,11 @@ export const tellTrialAPI = (
   studyId: number,
   trialId: number,
   state: TrialState,
-  value?: string
+  values?: string[]
 ): Promise<void> => {
-  const req: { [name: string]: string } = {state: state}
-  if (value !== undefined) {
-    req["value"] = value
+  const req: { [name: string]: TrialState | string[] } = {state: state}
+  if (values !== undefined) {
+    req["values"] = values
   }
 
   return axiosInstance
diff --git a/optuna_dashboard/ts/components/TrialTable.tsx b/optuna_dashboard/ts/components/TrialTable.tsx
index 6c547961..00a14fe9 100644
--- a/optuna_dashboard/ts/components/TrialTable.tsx
+++ b/optuna_dashboard/ts/components/TrialTable.tsx
@@ -267,15 +267,15 @@ export const TrialTable: FC<{
 
 
   const collapseBody = (index: number) => {
-    const [value, setValue] = useState("")
+    const [objectiveValue, setObjectiveValue] = useState("")
     const handleSubmit = (e: FormEvent<HTMLFormElement>): void => {
       e.preventDefault()
       const studyId = (studyDetail as StudyDetail).id
       const trialId = trials[index].number
-      action.tellTrial(studyId, trialId, "Complete" as TrialState, value)
+      action.tellTrial(studyId, trialId, "Complete" as TrialState, [objectiveValue])
     }
     const handleChangeValue = (e: ChangeEvent<HTMLInputElement>): void => {
-      setValue(e.target.value)
+      setObjectiveValue(e.target.value)
     }
     const handleFailTrial = (e: MouseEvent<HTMLButtonElement>): void => {
       const studyId = (studyDetail as StudyDetail).id
@@ -320,7 +320,7 @@ export const TrialTable: FC<{
             </Typography>
             <form onSubmit={handleSubmit}>
               <Box margin={1}>
-                <TextField id="objective-0" label="Objective 0" type="number" value={value} onChange={handleChangeValue} />
+                <TextField id="objective-0" label="Objective 0" type="number" value={objectiveValue} onChange={handleChangeValue} />
                 <TextField id="objective-1" label="Objective 1" type="number" />
               </Box>
               <Button variant="contained" type="submit">