diff --git a/src/ts/Author.ts b/src/ts/Author.ts
index d435923..e97c2fc 100644
--- a/src/ts/Author.ts
+++ b/src/ts/Author.ts
@@ -1,6 +1,6 @@
 class Author {
-    private _name: string;
-    private _avatarHash: string;
+    private readonly _name: string;
+    private readonly _avatarHash: string;
 
     constructor(json: any) {
         this._name = json.name;