diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 8e31fd23..e0bbfd50 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,6 +1,6 @@
-Before submitting your pull request, be sure your code adheres to PHPMailer
+Before submitting your pull request, check whether your code adheres to PHPMailer
 coding standards by running the following command:
 
-`./vendor/bin/php-cs-fixer fix`
+`./vendor/bin/php-cs-fixer --diff --dry-run --verbose fix `
 
-And committing eventual changes.
+And committing eventual changes. It's important that this command uses the specific version of php-cs-fixer configured for PHPMailer, so run `composer install` within the PHPMailer folder to use the exact version it needs.