diff --git a/src/api/splatnet3-types.ts b/src/api/splatnet3-types.ts
index 17c2833..8056629 100644
--- a/src/api/splatnet3-types.ts
+++ b/src/api/splatnet3-types.ts
@@ -424,7 +424,7 @@ interface LatestBattleHistoryDetails {
     player: {
         weapon: Weapon;
         id: string;
-        festGrade: unknown | null;
+        festGrade: string | null;
     };
     knockout: JudgementKnockout;
     myTeam: {