diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index 76ec07c..815e0d9 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -18,10 +18,10 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup Deno v1.22.1
+      - name: Setup Deno v1.25.2
         uses: denoland/setup-deno@v1
         with:
-          deno-version: v1.22.1
+          deno-version: v1.25.2
 
       - name: Verify formatting
         run: deno fmt mod.ts src/ --options-single-quote --options-line-width=120 --check
diff --git a/README.md b/README.md
index b9d805e..f08a1b5 100644
--- a/README.md
+++ b/README.md
@@ -34,20 +34,20 @@ https://github.com/switcherapi/switcher-api
 The context properties stores all information regarding connectivity.
 
 ```ts
-import { Switcher } from "https://deno.land/x/switcher4deno@v1.0.0/mod.ts";
+import { Switcher } from "https://deno.land/x/switcher4deno@v1.0.1/mod.ts";
 
+const url = 'https://switcherapi.com/api';
 const apiKey = '[API_KEY]';
 const environment = 'default';
 const domain = 'My Domain';
 const component = 'MyApp';
-const url = 'https://switcher-api.herokuapp.com';
 ```
 
+- **url**: Swither-API url.
 - **apiKey**: Switcher-API key generated to your component.
 - **environment**: (optional) Environment name. Production environment is named as 'default'.
 - **domain**: Domain name.
 - **component**: Application name.
-- **url**: (optional) Swither-API endpoint.
 
 ## Options
 You can also activate features such as offline and silent mode:
@@ -97,7 +97,7 @@ switcher.isItOn('KEY')
 Loading information into the switcher can be made by using *prepare*, in case you want to include input from a different place of your code. Otherwise, it is also possible to include everything in the same call.
 
 ```ts
-import { checkValue, checkNetwork } from "https://deno.land/x/switcher4deno@v1.0.0/mod.ts";
+import { checkValue, checkNetwork } from "https://deno.land/x/switcher4deno@v1.0.1/mod.ts";
 
 switcher.prepare('FEATURE01', [checkValue('USER_1')];
 switcher.isItOn();
diff --git a/src/switcher-client.ts b/src/switcher-client.ts
index 6a6b9f0..ef1292c 100644
--- a/src/switcher-client.ts
+++ b/src/switcher-client.ts
@@ -6,7 +6,6 @@ import { checkSwitchers, loadDomain, validateSnapshot } from './lib/snapshot.ts'
 import * as services from './lib/remote.ts';
 import checkCriteriaOffline from './lib/resolver.ts';
 
-const DEFAULT_URL = 'https://switcher-api.herokuapp.com';
 const DEFAULT_ENVIRONMENT = 'default';
 const DEFAULT_SNAPSHOT_LOCATION = './snapshot/';
 const DEFAULT_RETRY_TIME = '5m';
@@ -47,8 +46,8 @@ export class Switcher {
     this._snapshot = undefined;
     this._context = {};
     this._context = context;
+    this._context.url = context.url;
     this._context.environment = context.environment || DEFAULT_ENVIRONMENT;
-    this._context.url = context.url || DEFAULT_URL;
 
     // Default values
     this._options = {};
diff --git a/test/playground/index.ts b/test/playground/index.ts
index f9eb226..2539276 100644
--- a/test/playground/index.ts
+++ b/test/playground/index.ts
@@ -6,7 +6,7 @@ const apiKey = 'JDJiJDA4JEFweTZjSTR2bE9pUjNJOUYvRy9raC4vRS80Q2tzUnk1d3o1aXFmS2o5
 const domain = 'Playground';
 const component = 'switcher-playground';
 const environment = 'default';
-const url = 'https://switcher-api.herokuapp.com';
+const url = 'https://switcherapi.com/api';
 
 let switcher;
 
diff --git a/test/switcher-integrated.test.ts b/test/switcher-integrated.test.ts
index 843e45a..d15d824 100644
--- a/test/switcher-integrated.test.ts
+++ b/test/switcher-integrated.test.ts
@@ -233,6 +233,27 @@ describe('Integrated test - Switcher:', function () {
       ]));
     });
 
+    it('Should be invalid - Missing API url field', async function () {
+      // given
+      given('GET@/check', null);
+      given('POST@/criteria/auth', generateAuth('[auth_token]', 5));
+
+      // test
+      Switcher.buildContext({ 
+        url: undefined,
+        apiKey: '[apiKey]', 
+        domain: '[domain]', 
+        component: '[component]', 
+        environment: 'default' 
+      });
+
+      const switcher = Switcher.factory();
+
+      await assertRejects(async () =>
+        await switcher.isItOn(),
+        Error, 'Something went wrong: Invalid URL');
+    });
+
     it('Should be invalid - Missing API Key field', async function () {
       // given
       given('GET@/check', null);