diff --git a/server/api/dtos/user.dto.ts b/server/api/dtos/user.dto.ts
index 670ba9c..a7b9dfb 100644
--- a/server/api/dtos/user.dto.ts
+++ b/server/api/dtos/user.dto.ts
@@ -51,7 +51,7 @@ export class UserDTO {
     private static baseSchema = createSelectSchema(tableSchemas.userTable, {
         email: z.string().email(),
         imageUrl: z.string().url(),
-        username: z.string().min(4).max(50),
+        username: usernameSchema,
     }).omit({
         createdAt: true,
         updatedAt: true,