diff --git a/changes.md b/changes.md
index 315ceb71..f0ba7ab1 100644
--- a/changes.md
+++ b/changes.md
@@ -4,7 +4,7 @@
 
 ### Changed
 
-- Extract `updateCard` from `createAsStripeCustomer` method
+- Extract `updateCard` from `createAsStripeCustomer` method ([#588](https://github.com/laravel/cashier/pull/588))
 
 ## Version 2.0.4
 
diff --git a/phpunit.xml b/phpunit.xml
index d2b12221..b85ec5ad 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -16,7 +16,7 @@
         </testsuite>
     </testsuites>
     <php>
-        <env name="STRIPE_SECRET" value="sk_test_TRBBHE1surdGLAgWYDhuY50y"/>
+        <env name="STRIPE_SECRET" value=""/>
         <env name="STRIPE_MODEL" value="Laravel\Cashier\Tests\Fixtures\User"/>
     </php>
 </phpunit>