diff --git a/src/__tests__/TuitioAuthentication.test.ts b/src/__tests__/TuitioAuthentication.test.ts
index f648ecb..3e48ff4 100644
--- a/src/__tests__/TuitioAuthentication.test.ts
+++ b/src/__tests__/TuitioAuthentication.test.ts
@@ -2,6 +2,8 @@
  * @jest-environment jsdom
  */
 
+// Copyright (c) 2023 Tudor Stanciu
+
 import axios from "axios";
 import { TuitioClient, fetch, invalidate } from "../client";
 
diff --git a/src/__tests__/TuitioClient.test.ts b/src/__tests__/TuitioClient.test.ts
index f087720..378db08 100644
--- a/src/__tests__/TuitioClient.test.ts
+++ b/src/__tests__/TuitioClient.test.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 import { getUrlTemplates } from "../config";
 import { TuitioClient } from "../client";
 import type { TuitioAuthenticationResult, TuitioToken } from "../client";
diff --git a/src/__tests__/TuitioStorage.test.ts b/src/__tests__/TuitioStorage.test.ts
index 0916c05..45904ad 100644
--- a/src/__tests__/TuitioStorage.test.ts
+++ b/src/__tests__/TuitioStorage.test.ts
@@ -2,6 +2,8 @@
  * @jest-environment jsdom
  */
 
+// Copyright (c) 2023 Tudor Stanciu
+
 import { fetch, invalidate } from "../client";
 
 test("Tuitio empty storage", () => {
diff --git a/src/__tests__/Utils.test.ts b/src/__tests__/Utils.test.ts
index c347153..b5b9ca1 100644
--- a/src/__tests__/Utils.test.ts
+++ b/src/__tests__/Utils.test.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 import { combineUrls, isValidURL } from "../utils";
 
 test("Combine urls with trailing slash", () => {
diff --git a/src/client.ts b/src/client.ts
index 35ba608..30a1960 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 import axios from "axios";
 import { localStorage } from "@flare/js-utils";
 import { storageKeys } from "./constants";
diff --git a/src/config.ts b/src/config.ts
index e4d7690..73070cc 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 import { combineUrls } from "./utils";
 
 type UrlTemplates = {
diff --git a/src/constants.ts b/src/constants.ts
index b4bf3da..d7ebcab 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 export const storageKeys: { TOKEN: string; USER: string } = {
   TOKEN: "TUITIO_AUTHORIZATION_TOKEN",
   USER: "TUITIO_USER_NAME"
diff --git a/src/index.ts b/src/index.ts
index b921618..c2b304e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 import { TuitioClient, invalidate, fetch } from "./client";
 import type { TuitioToken, TuitioAuthenticationResult, TuitioState } from "./client";
 
diff --git a/src/utils.ts b/src/utils.ts
index 1d2bef3..1828553 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,3 +1,5 @@
+// Copyright (c) 2023 Tudor Stanciu
+
 const combineUrls = (piece1: string, piece2: string): string => {
   let baseElement = piece1;
   if (baseElement.endsWith("/")) baseElement = baseElement.substring(0, baseElement.length - 1);