diff --git a/.travis.yml b/.travis.yml
index 5a69e0a..a7cb6ab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -47,6 +47,11 @@ matrix:
       env:
         - EVENT_MANAGER_VERSION="^2.6.2"
         - SERVICE_MANAGER_VERSION="^2.7.5"
+    - php: 7.1
+    - php: 7.1
+      env:
+        - EVENT_MANAGER_VERSION="^2.6.2"
+        - SERVICE_MANAGER_VERSION="^2.7.5"
     - php: hhvm 
     - php: hhvm 
       env:
diff --git a/test/Listener/TestAsset/SampleAbstractFactory.php b/test/Listener/TestAsset/SampleAbstractFactory.php
index a8aea3d..7cfc329 100644
--- a/test/Listener/TestAsset/SampleAbstractFactory.php
+++ b/test/Listener/TestAsset/SampleAbstractFactory.php
@@ -26,7 +26,7 @@ public function canCreateServiceWithName(ServiceLocatorInterface $container, $na
         return true;
     }
 
-    public function __invoke(ContainerInterface $container, $name, array $options = [])
+    public function __invoke(ContainerInterface $container, $name, array $options = null)
     {
         return new stdClass;
     }