diff --git a/src/app/common/time-utils.ts b/src/app/common/time-utils.ts
index a62cb2f..542fa7d 100644
--- a/src/app/common/time-utils.ts
+++ b/src/app/common/time-utils.ts
@@ -17,7 +17,7 @@ export function timeAgo(input: Date | number) {
     second: 1,
   };
   const secondsElapsed = (date.getTime() - Date.now()) / 1000;
-  for (let key in ranges) {
+  for (const key in ranges) {
     if (ranges[key] < Math.abs(secondsElapsed)) {
       const delta = secondsElapsed / ranges[key];
       return formatter.format(Math.round(delta), key as Intl.RelativeTimeFormatUnit);