diff --git a/src/TestSessionEnvironment.php b/src/TestSessionEnvironment.php
index 9b6eeb9..0a729e3 100644
--- a/src/TestSessionEnvironment.php
+++ b/src/TestSessionEnvironment.php
@@ -80,7 +80,6 @@ class TestSessionEnvironment
 
     public function __construct($id = null)
     {
-        $this->constructExtensions();
         if ($id) {
             $this->id = $id;
         }
diff --git a/src/TestSessionHTTPMiddleware.php b/src/TestSessionHTTPMiddleware.php
index e3d20a8..4de5720 100644
--- a/src/TestSessionHTTPMiddleware.php
+++ b/src/TestSessionHTTPMiddleware.php
@@ -69,7 +69,7 @@ class TestSessionHTTPMiddleware implements HTTPMiddleware
             $mailer = $testState->mailer;
             Injector::inst()->registerService(new $mailer(), Mailer::class);
             Email::config()->set("send_all_emails_to", null);
-            Email::config()->update('admin_email', 'no-reply@example.com');
+            Email::config()->set('admin_email', 'no-reply@example.com');
         }
 
         // Connect to the test session database