diff --git a/src/DrupalExtension/Context/ServiceContainerContext.php b/src/DrupalExtension/Context/ServiceContainerContext.php
index e256eda..9c76e9a 100644
--- a/src/DrupalExtension/Context/ServiceContainerContext.php
+++ b/src/DrupalExtension/Context/ServiceContainerContext.php
@@ -65,7 +65,7 @@ public function negateParameters($name, $expected) {
    * @param array $parameters
    *   List of parameters to be overridden.
    */
-  protected function overrideParameters(array $parameters) {
+  public function overrideParameters(array $parameters) {
     $this->setServiceProvider();
 
     // Cast service parameters.