diff --git a/src/utils/types.ts b/src/utils/types.ts
index 949af2d..c1bdb51 100644
--- a/src/utils/types.ts
+++ b/src/utils/types.ts
@@ -582,7 +582,7 @@ export interface Tutorial {
 export interface ExerciseMcqData {
   question: string
   options: string[]
-  answer: number
+  answer: number[]
 }
 
 export interface ExerciseSortData {