diff --git a/src/features/charts/server/components/SessionsRunningTimeChart.js b/src/features/charts/server/components/SessionsRunningTimeChart.js
index 2182783..b73a836 100644
--- a/src/features/charts/server/components/SessionsRunningTimeChart.js
+++ b/src/features/charts/server/components/SessionsRunningTimeChart.js
@@ -19,7 +19,7 @@ import SessionsRunningTimeChartTooltip from "./SessionsRunningTimeChartTooltip";
 const SessionsRunningTimeChart = ({ data }) => {
   const { t } = useTranslation();
 
-  const chartData = data.map((z) => {
+  const chartData = data.map(z => {
     return {
       sessionId: z.sessionId,
       name: `S${z.orderNo}`,
@@ -45,7 +45,7 @@ const SessionsRunningTimeChart = ({ data }) => {
         <Spinner />
       ) : (
         <>
-          <Grid container justify="center">
+          <Grid container justifyContent="center">
             <Grid item>
               <Typography gutterBottom variant="h5">
                 {t("Charts.Server.Sessions.RunningTime.Title")}