diff --git a/frontend/src/lib/types.ts b/frontend/src/lib/types.ts
index 490f5352..7ddfd95c 100644
--- a/frontend/src/lib/types.ts
+++ b/frontend/src/lib/types.ts
@@ -35,6 +35,7 @@ export type TranscriptionBlockData = {
 	label: string | null;
 	sortOrder: number;
 	version: number;
+	updatedAt?: string | null;
 };
 
 export type Annotation = {