diff --git a/types/GridSummon.d.ts b/types/GridSummon.d.ts
index bfde1535..e8b14831 100644
--- a/types/GridSummon.d.ts
+++ b/types/GridSummon.d.ts
@@ -5,4 +5,5 @@ interface GridSummon {
   position: number
   object: Summon
   uncap_level: number
+  transcendence_step: number
 }