diff --git a/src/07-arrays.solution.2.ts b/src/07-arrays.solution.3.ts
similarity index 94%
rename from src/07-arrays.solution.2.ts
rename to src/07-arrays.solution.3.ts
index b1400944..e5f07193 100644
--- a/src/07-arrays.solution.2.ts
+++ b/src/07-arrays.solution.3.ts
@@ -3,7 +3,7 @@ interface User {
   firstName: string;
   lastName: string;
   role: "admin" | "user" | "super-admin";
-  posts: Array<Post>;
+  posts: [Post];
 }
 
 interface Post {