src/Context/KernelAwareInitializer.php
public function rebootKernel()
    {
        if ($this->context instanceof KernelAwareContext)
        {
            $this->kernel->flush();

            $laravel = new LaravelBooter($this->kernel->basePath(), $this->kernel->environmentFile());

            $this->context->getSession('laravel')->getDriver()->reboot($this->kernel = $laravel->boot());

            $this->setAppOnContext();
        }
    }
public function rebootKernel()
    {
        if ($this->context instanceof KernelAwareContext)
        {
            $this->kernel->flush();

            $laravel = new LaravelBooter($this->kernel->basePath(), $this->kernel->environmentFile());

            $this->context->getSession('laravel')->getDriver()->reboot($this->kernel = $laravel->boot());

            $this->setAppOnContext();
        }
    }
After each scenario, reboot the kernel.