diff --git a/.gitignore b/.gitignore
index 19adabd..424add2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ composer.lock
 .DS_Store
 Thumbs.db
 phpunit.xml
-/.idea
\ No newline at end of file
+/.idea
+.phpunit.result.cache
diff --git a/config/googletranslate.php b/config/googletranslate.php
index 6b88f9d..0639db1 100644
--- a/config/googletranslate.php
+++ b/config/googletranslate.php
@@ -2,20 +2,20 @@
 
 return [
     /*
-    |----------------------------------------------------------------------------------------------------
-    | The ISO 639-1 code of the language in lowercase to which the text will be translated to by default.
-    |----------------------------------------------------------------------------------------------------
-    */
+      |----------------------------------------------------------------------------------------------------
+      | The ISO 639-1 code of the language in lowercase to which the text will be translated to by default.
+      |----------------------------------------------------------------------------------------------------
+      */
     'default_target_translation' => 'en',
 
     /*
-    |-------------------------------------------------------------------------------
-    | Path to the json file containing the authentication credentials.
-    |
-    | The process to get this file is documented in a step by step detailed manner
-    | over here:
-    | https://github.com/JoggApp/laravel-google-translate/blob/master/google.md
-    |-------------------------------------------------------------------------------
-    */
-    'key_file_path' => base_path('composer.json'),
+      |-------------------------------------------------------------------------------
+      | Api Key generated within Google Cloud Dashboard.
+      |
+      | The process to get this file is documented in a step by step detailed manner
+      | over here:
+      | https://github.com/JoggApp/laravel-google-translate/blob/master/google.md
+      |-------------------------------------------------------------------------------
+      */
+    'api_key' => env('GOOGLE_TRANSLATE_API_KEY'),
 ];
diff --git a/google.md b/google.md
index 87717a9..44eb219 100644
--- a/google.md
+++ b/google.md
@@ -6,12 +6,11 @@
 
 <img width="576" alt="screen shot 2018-10-11 at 12 11 19 am" src="https://user-images.githubusercontent.com/11228182/46759117-29c62600-ccec-11e8-99a2-b23ee035a75d.png">
 
-- Select the project you just created, and go the "Create Service Account Key" page and in the 'Service Account' section click on 'New Service Account'.
+- Select the project you just created, and go the "APIs & Services" -> "Credentials" using the navigation.
 
-- Enter the name & select the Role as 'Owner' for the project.
+- Click at the "Create credentials" dropdown button and choose "API key". To prevent unauthorized use and quota theft, restrict your key to limit how it can be used.
 
-- Then click on create to have the JSON credentials file downloaded automatically.
-
-- Add that json file in your laravel project root & add it to `.gitignore`.
-
-- Set the path to that file as the value for the key `key_file_path` in the `config/googletranslate.php` (config file published by this package).
\ No newline at end of file
+- Now, you can use this key to set a package-specific environment variable:
+```
+GOOGLE_TRANSLATE_API_KEY=AIzaS.....
+```
\ No newline at end of file
diff --git a/src/GoogleTranslateClient.php b/src/GoogleTranslateClient.php
index 0c2d63b..a18d425 100644
--- a/src/GoogleTranslateClient.php
+++ b/src/GoogleTranslateClient.php
@@ -3,7 +3,7 @@
 namespace JoggApp\GoogleTranslate;
 
 use Exception;
-use Google\Cloud\Translate\TranslateClient;
+use Google\Cloud\Translate\V2\TranslateClient;
 use JoggApp\GoogleTranslate\Traits\SupportedLanguages;
 
 class GoogleTranslateClient
@@ -15,9 +15,8 @@ class GoogleTranslateClient
     public function __construct(array $config)
     {
         $this->checkForInvalidConfiguration($config);
-
         $this->translate = new TranslateClient([
-            'keyFilePath' => $config['key_file_path']
+            'key' => $config['api_key'],
         ]);
     }
 
@@ -53,8 +52,8 @@ public function getAvaliableTranslationsFor(string $languageCode)
 
     private function checkForInvalidConfiguration(array $config)
     {
-        if (!file_exists($config['key_file_path'])) {
-            throw new Exception('The json file does not exist at the given path');
+        if ( ! isset($config['api_key']) || $config['api_key'] === null) {
+            throw new Exception('Google Api Key is required.');
         }
 
         $codeInConfig = $config['default_target_translation'];
@@ -63,7 +62,7 @@ private function checkForInvalidConfiguration(array $config)
             && ctype_lower($codeInConfig)
             && in_array($codeInConfig, $this->languages());
 
-        if (!$languageCodeIsValid) {
+        if ( ! $languageCodeIsValid) {
             throw new Exception(
                 'The default_target_translation value in the config/googletranslate.php file should
                 be a valid lowercase ISO 639-1 code of the language'