diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9977d13..e5b5720 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,7 +49,7 @@ jobs:
     - name: Upload to Codecov 📊
       uses: codecov/codecov-action@v3
       with:
-        token: ${{ secrets.CODE_COV_TOKEN }}
+        token: ${{ secrets.CODECOV_TOKEN }}
         files: ./coverage.xml
         verbose: true
   
diff --git a/README.md b/README.md
index 633de6e..1e2b9f2 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Inpi RNE PHP is a PHP library to easily interact with RNE INPI API. It allow use
 This version is based on the INPI Documentation located in data folder of this repository
 
 ## Requirements
-PHP 8.1.0 and later.
+PHP 8.2.0 and later.
 
 ## Installation
 Use [Composer](https://getcomposer.org/) to install this package :
@@ -41,5 +41,12 @@ $data = $client->searchBySiren('889924320');
 To execute tests of the package :
 vendor/bin/phpunit
 
+## Code coverage
+To maintain good code quality, we encourage contributors to have the best code coverage
+You have to generate the coverage report with a tool like xdebug when it's installed you can launch this command : 
+```XDEBUG_MODE=coverage ./vendor/bin/phpunit --configuration phpunit.xml --coverage-clover test-reports/cov.xml```
+
+If you use VSCode you can show it with this extension : [Coverage Gutters](https://github.com/ryanluker/vscode-coverage-gutters/)
+
 ## Authors
 Kanta Inc