diff --git a/tests/Api/CaptionsApiTest.php b/tests/Api/CaptionsApiTest.php
index 93d9995..b42fe31 100644
--- a/tests/Api/CaptionsApiTest.php
+++ b/tests/Api/CaptionsApiTest.php
@@ -29,7 +29,7 @@ public function testList()
     {
         $video = (new Helper($this->client))->createVideo();
 
-        foreach (['fr', 'ch', 'en', 'de', 'es'] as $language) {
+        foreach (['fr', 'ja', 'en', 'de', 'es'] as $language) {
             $this->client->captions()->upload(
                 $video->getVideoId(),
                 $language,
diff --git a/tests/Api/ChaptersApiTest.php b/tests/Api/ChaptersApiTest.php
index f25a98f..c2191bb 100644
--- a/tests/Api/ChaptersApiTest.php
+++ b/tests/Api/ChaptersApiTest.php
@@ -28,7 +28,7 @@ public function testList()
     {
         $video = (new Helper($this->client))->createVideo();
 
-        foreach (['fr', 'ch', 'en', 'de', 'es'] as $language) {
+        foreach (['fr', 'ja', 'en', 'de', 'es'] as $language) {
             $this->client->chapters()->upload(
                 $video->getVideoId(),
                 $language,